This is a list of the most notable mass shootings in the United States that have occurred since 1900. Mass shootings are incidents involving several victims of firearm-related violence. The precise inclusion criteria are disputed, and there is no broadly accepted definition.[1][2]Only shootings that have Wikipedia articles of their own are included in this list. Detailed lists of mass shootings can be found per year at their respective pages.
The Gun Violence Archive, a nonprofit research group that tracks shootings and their characteristics in the United States, defines a mass shooting as an incident in which four or more people, excluding the perpetrator(s), are shot in one location at roughly the same time,[3] with the FBI having a minimum of three. The Congressional Research Service narrows that definition further, only considering what it defines as "public mass shootings", and only considering victims as those who are killed, excluding any victims who survive.[2]The Washington Post and Mother Jones use similar definitions, with the latter acknowledging that their definition "is a conservative measure of the problem", as many rampages with fewer fatalities occur.[4][5] The crowdsourced Mass Shooting Tracker project uses a looser definition than the Gun Violence Archive's definition: four people shot in one incident regardless of the circumstances.[6]
Larger documentation of mass shootings in the United States has occurred through independent and scholarly studies such as the Stanford University Mass Shootings in America Data Project.[4][7]
Definitions
There are varying definitions of a mass shooting. Listed roughly from broadest to most restrictive:
Stanford MSA Data Project: three or more persons shot in one incident, excluding the perpetrator(s), at one location, at roughly the same time. Excluded are shootings associated with organized crime, gangs or drug wars.[7]
Gun Violence Archive/Vox: 4+ shot in one incident, excluding the perpetrator(s), at one location, at roughly the same time.[3]
Mother Jones: 3+ shot and killed in one incident, excluding the perpetrator(s), at a public place, excluding gang-related killings.[8]
The Washington Post: 4+ shot and killed in one incident, excluding the perpetrator(s), at a public place, excluding gang-related killings.[4]
Congressional Research Service: 4+ shot and killed in one incident, excluding the perpetrator(s), at a public place, excluding gang-related killings, acts carried out that were inspired by criminal profit, and terrorism.[2]
September 2024 Birmingham shooting: Four people were killed and seventeen others were wounded after multiple shooters opened fire outside a bar in the Five Points South neighborhood.[9]
Interstate 75 Kentucky shooting: Five people were shot and injured when a lone gunman shot civilians in passing by cars on the Interstate 75 in Kentucky. Three other people suffered injuries due to vehicle accidents caused by the shooting.[10][11][12] The shooters body was found on September 18, with a self-inflicted gunshot wound to the head.
2024 Florence shooting: 21-year-old Chase Garvey killed four and wounded three others at a residence before fleeing in a vehicle; he crashed into a ditch and committed suicide during a police pursuit.[16][17]
2024 Fordyce shooting: A 44-year-old man opened fire at the Mad Butcher Grocery Store, killing four civilians and injuring nine others, including two police officers. The suspect, identified as Travis Posey from a neighboring county, suffered a graze wound after being shot by police.[20]
2024 Rochester Hills shooting: A 42-year-old man from another county randomly shot nine people including two children at the Brooklands Plaza Splash Pad before driving to his home and shooting himself.[21]
2024 Charlotte shootout: Four law enforcement officers were shot and killed and four others wounded after a suspect fired at a task force serving an arrest warrant for a man. The subject of the warrant, who was later identified as 39-year-old Terry Clark Hughes Jr., was also killed.[24][25]
2024 Burnsville shooting: Police and medics were fired upon from a home while responding to a domestic incident. Two officers and a firefighter were killed while another officer suffered a gunshot wound.[26] After opening fire on first responders, the shooter fatally shot himself.[27]
2024 East Lansdowne shooting: A man killed his niece and shot two police officers before setting his house on fire, killing himself and four other relatives.[28]
2024 Joliet shootings: A gunman opened fire at two homes, killing seven people. The gunman previously opened fire at two locations, killing a man and injuring one person, before fatally shooting himself in a confrontation with law enforcement officials near Natalia, Texas.
Perry High School shooting: A 17-year-old male opened fire at Perry High School, killing one student and injuring seven others, including a school administrator, before committing suicide. The principal of the school, who was wounded during the incident, died from his wounds ten days later on January 14.[29][30]
2023 Austin shootings: A suspect killed four people and injured three others in a shooting in Austin. Another shooting in Bexar County that killed two was also connected to the suspect.
2023 Lewiston shootings: A shooter opened fire at a bowling alley and a local bar, killing 18 people and injuring 13 others. He was found dead from an apparent self-inflicted gunshot wound two days later.[32][33][34]
2023 Trabuco Canyon shooting: A former police officer shot and wounded his ex-wife before opening fire on random people at the Cook's Corner bar, killing three people and wounding six others. The gunman was killed by police.[36]
2023 shooting of Fargo police officers: A man shot at police officers responding to an unrelated traffic collision, killing one officer and wounding two more before an officer shot and killed him. In addition, a nearby woman was struck by gunfire.[37]
2023 Annapolis shooting: A man fired at neighbors following a dispute over a parking space, killing three people and wounding three others. A suspect was arrested.[42]
2023 Richmond shooting: Seven people were shot, two fatally, outside a downtown theater in Richmond, Virginia, where a high school graduation ceremony had just ended. Two suspects were arrested.
2023 Allen, Texas mall shooting: A man opened fire at the Allen Premium Outlets, killing eight people, and injuring at least seven others before being killed by police.[44]
2023 Atlanta shooting: A man opened fire inside a Northside Hospital facility in Midtown Atlanta, killing a 39-year-old woman, and injuring four others, before fleeing the scene. After eight hours of being on the run, the suspect was arrested by police without further incident.[45][46]
2023 Cleveland, Texas shooting: A man armed with an AR-15-style rifle opened fire at a home, killing five people, including a child, before fleeing the scene. Three children were covered in blood, but were hospitalized.[48] The suspect, 38-year-old Francisco Oropeza, was captured after a 4-day-long manhunt.[49]
2023 Bowdoin–Yarmouth shootings: Four people were killed at a home in Bowdoin, followed by a shooting on a highway in Yarmouth that wounded three family members in the same vehicle. The son of two of the victims in Bowdoin was charged with the shooting.
2023 Dadeville shooting: Gunmen opened fire at a birthday party, killing four people, and injuring 32 others. Six suspects were taken into custody.[50][51]
2023 Louisville bank shooting: An employee opened fire at a bank, killing five people and injuring eight others, including a police officer that was critically wounded.[52] The perpetrator, 25-year-old Connor Sturgeon, was fatally shot by police.[53]
2023 Nashville school shooting: A former student opened fire at The Covenant School in the Green Hills neighborhood. Six people were killed, three of them children, and one police officer was injured by shattered glass. The perpetrator, 28-year-old Aiden Hale, was fatally shot by police.[54]
2023 Monterey Park shooting: Eleven people were killed and nine others injured after a gunman opened fire at a dance studio in Monterey Park after a Chinese New Year celebration in the city. The perpetrator shot and killed himself in a standoff with police the next day.[59]
2022 Chesapeake shooting: Six people were killed, and four others were injured, when a night-shift manager opened fire at a Walmart. The gunman then committed suicide.[62]
Colorado Springs nightclub shooting: A gunman killed five after entering a local gay bar and 26 others, including the gunman, were wounded during the attack, 19 of them by gunfire. A suspect was later taken into custody.
2022 Oakland school shooting: Four staff members and two students were shot by multiple gunmen at a complex that houses multiple schools. The shooting may have been tied to gang violence.[65]
2022 Bend, Oregon shooting: A local man shot four people, two fatally, in a Safeway supermarket at the Forum shopping center before committing suicide.
2022 Denver police shooting: Three police officers fired on a fleeing suspect, wounding him and six bystanders. One officer was convicted of assault and sentenced to 18 months probation.[66]
Highland Park parade shooting: Seven people were killed and 48 others injured after a man fired a rifle from a rooftop at spectators attending Highland Park's Fourth of July parade.
2022 shooting of Kentucky police officers: A man fired out the window of his home, shooting seven people, six of whom were law enforcement officers. Two of the officers died at the scene, and a third died in the hospital the day after. The third officer was a canine handler, and his dog also died. The suspect later killed himself in jail.
2022 Chattanooga shooting: Twelve people were shot, two of them fatally, at a nightclub during the early morning. A third person was killed by a vehicle attempting to flee.[67]
2022 Philadelphia shooting: Fourteen people were shot, three of them fatally, by multiple shooters on South Street. One of the shooters may have been shot by a responding police officer.[68]
Centerville shooting: An escaped prisoner went inside a home and opened fire, killing five members of a family before being shot and killed by police.[69]
Uvalde school shooting: A local man shot and wounded his grandmother before driving to his former elementary school and opening fire. He killed nineteen children and two adults before being shot dead by police. Eighteen other people were hospitalized.[71]
2022 Buffalo shooting: The shooter, 18-year-old Payton Gendron, who was clad in body armor and a white supremacist, opened fire at a Tops supermarket, killing ten people, all of whom were Black, including a security guard, and wounded three others.[74] On February 15, 2023, he was sentenced to life in prison without the possibility of parole. The gunman specifically targeted African-Americans and was influenced by similar terrorist incidents in Charleston, Pittsburgh, Christchurch, Poway and El Paso.
2022 Pittsburgh shooting: An early morning shooting at a party held at an Airbnb rental property in the East Allegheny neighborhood killed two juveniles and wounded eight others. Five people sustained injuries such as broken bones and cuts when they jumped out of windows to escape the gunfire.[75]
2022 New York City Subway attack: Ten people were shot when a gunman opened fire on a New York City Subway train as it approached the 36th Street station in the Sunset Park neighborhood. Immediately before the attack, the assailant donned a gas mask and threw smoke bombs. The incident caused 19 others to be injured as they fled. The attacker fled the scene and was arrested after police received a tip-off after a 30-hour manhunt. He was identified as 62-year-old Frank James.[76][77]
Normandale Park shooting: During a racial justice protest, a man confronted a group of protestors and engaged in an argument with them, before pulling out a gun and opening fire, killing one and wounding four others. One of the people in the group returned fire and wounded the perpetrator.[80] An injured victim died in 2024.[81]
2021 Denver and Lakewood shootings: A gunman traveled to multiple businesses and homes, where he killed five people and wounded two others before being shot dead by police.[82]
2021 Oxford High School shooting: A shooter, a student at the school, opened fire on students, killing three and wounding seven students and a teacher before being arrested. One of the injured died afterwards.[83]
Indianapolis FedEx shooting: Nine people were killed and seven others were wounded after a mass shooting at a FedEx facility. The shooter took his own life.
2021 Boulder shooting: A mass shooting occurred at a King Soopers supermarket in Boulder, Colorado, which left 10 people dead, including an on-duty police officer.
2021 Atlanta spa shootings: A series of mass shootings occurred at massage parlors in the Atlanta, Georgia metropolitan area. Eight people were killed in the incidents and one person was wounded.
Buffalo, Minnesota clinic attack: A nurse was killed and four other people were shot and seriously wounded inside of a health care clinic. The suspect, 67-year-old Gregory Paul Ulrich, was taken into police custody.[88][89]
2021 Muskogee shooting: Five children and one adult were shot and killed, and one other adult suffered life-threatening injuries, after a home shooting in Oklahoma. Suspect, 25-year-old Jarron Pridgeon, is currently under custody.[90]
2021 Sunrise, Florida shootout: Two FBI agents were shot and killed and three others wounded attempting to serve a warrant. The suspect barricaded himself in his home and opened fire before shooting and killing himself.
Henderson shooting: Three people were killed and one person was injured when a gunman opened fire at an apartment complex. The gunman was killed by police.
2020 Springfield, Missouri shooting: A man committed a series of random drive-by shootings before crashing his vehicle at a gas station. He entered the business, where he killed four people and wounded two others before committing suicide.[91]
2019 Jersey City shooting: An officer approached a vehicle suspected of being used in a murder previously, he was shot and killed. In the resulting suspect chase and police confrontation the two suspects were killed, along with three other civilians, a civilian and two cops were wounded as well. The attack in question was committed by a Black Hebrew Israelite and targeted Jews living in Jersey City.
2019 Miramar shootout: Two suspects robbed a jewelry store which resulted in a police shootout that killed 2 people,[92] including a UPS truck driver who was on his 1st day on the job. Both suspects were killed by police.
2019 Dayton shooting: A gunman shot 26 people, killing 9, including his transgender sibling, and wounding 17 others outside of a bar. Ten others were wounded as they fled the scene. The perpetrator was killed by police after the first shots were fired in 32 seconds.
Gilroy Garlic Festival shooting: A gunman killed three people, including a 6-year-old boy, attending Gilroy's annual Garlic Festival; 12 more people were injured. The shooter killed himself.
Aurora, Illinois shooting: A 45-year-old man opened fire at a Henry Pratt Company plant and killed five people and injured six others. He was a former worker at the plant and he was killed in a shootout with police.
Shooting of Jemel Roberson: A man re-entered a bar after being ejected and began to fire, wounding three people and becoming injured himself. Armed security guards apprehended the suspect. Responding officers saw one of the security guards with a gun, and shot and killed him.[101]
Thousand Oaks shooting: A man entered a bar hosting a student line-dancing event and killed 12 people, including a police officer. 16 other people were injured, one of them by gunfire. The gunman then killed himself.[102][103]
Pittsburgh synagogue shooting: A man opened fire in the Tree of Life synagogue in an antisemitic attack, killing 11 people and injuring six others (including four police officers). The suspect, 46-year-old Robert G. Bowers, was taken into custody by police.[105][106]
Florence shooting: Officers were shot at during a two-hour standoff while attempting to execute a search warrant. The perpetrator held children hostage, killing one and wounding seven before being arrested.[107]
Aberdeen shooting: An employee of the Rite Aid Distribution facility killed three victims before wounding herself. The shooter died later in the hospital.[108]
2018 Cincinnati shooting: A gunman entered a loading dock at the Fifth Third Center skyscraper and opened fire before entering the lobby of a building. Four people, including the shooter, were killed and two were injured.[109]
Jacksonville Landing shooting: A gunman killed two people and wounded eleven more (nine with gunshot wounds) at a Madden NFL 19 competition before killing himself. The shooter was identified as David Katz, an individual who had reportedly been eliminated from the competition before the shooting.[110][111][112]
Art All Night shooting: Several gunmen wounded 17 people at the Art All Night festival. Five others were wounded when they were trampled by people around them. One of the suspected gunmen was shot and killed by police. Police suspect the shooting was gang-related.[115]
2018 Scottsdale shootings: Over the course of several days, a man killed a forensic psychiatrist, two paralegals, a counselor, and a couple from whom he took a handgun. The suspect killed himself when police began closing in on him.[116][117]
YouTube headquarters shooting: A woman approached an outdoor patio at YouTube Headquarters and wounded three people before committing suicide, a fourth person was injured in the evacuation.[120]
Yountville shooting: A man entered the Veterans Home of California and held three staff members hostage. He killed the three staff members (and the unborn child of one of the staff members, who was pregnant) before killing himself in a murder–suicide.[121]
2018 Marshall County High School shooting: A fifteen-year-old student killed two other students and injured sixteen others before discarding his weapon and attempting to hide among other students. He was apprehended by police.[124]
Copper Canyon Apartment Homes shooting: After being called to a home for a report of a disturbance, five police officers were shot in an "ambush-style" attack. One officer was killed and the other four were wounded. Two other people were also wounded in a neighboring apartment. Officers later re-entered the apartment with a SWAT team and killed the suspect; another officer was injured in this exchange.[125]
Sutherland Springs church shooting: A gunman approached the First Baptist Church in Sutherland Springs and killed two people outside before entering and shooting at the congregation, killing 26 people (including an unborn child) and injuring 22. He was confronted by a local man with a gun, and they exchanged gunfire before entering a vehicle. The man flagged down another person and they began a high-speed chase of the gunman, which ended when the gunman went off the road and was found dead from a self-inflicted gunshot wound.[126][127][128]
2017 Las Vegas shooting: A man on the 32nd floor of a hotel opened fire on a country music festival happening outside, killing 60 people and injuring 867 others, with 411 of them suffering from gunshot wounds. The man then killed himself.[129][130][131][132][133]
Burnette Chapel shooting: A man killed a woman outside the Burnette Chapel Church of Christ before entering the chapel and wounding seven others. During a struggle with an usher, the man shot himself in the chest. The usher ran to his car to get his own pistol and held the man at gunpoint until police arrived to arrest him.[134]
2017 Plano shooting: A man entered his ex-wife's home while she was hosting a football-watching party and killed her and seven others, and wounded one other. He was killed by police.[135]
Little Rock nightclub shooting: Twenty-eight people were injured (twenty-five directly by gunfire) when shooting broke out in a nightclub where rapper Finese 2Tymes was performing.[137]
Congressional baseball shooting: A gunman shot and wounded four people, including Republican Congressman and House Majority Whip Steve Scalise, while they were practicing for the Congressional Baseball Game. Two others were also injured in other ways. The gunman was killed after being engaged by Capitol police officers assigned to protect Scalise and by police officers responding to the scene.[139]
Sandy, Utah attack: A man rammed a vehicle containing his ex-girlfriend, three children and one other adult, opened fire, killing two and wounding two, then committed suicide.[141]
2017 Mississippi shootings: A man killed eight people, including several family members and a sheriff's deputy, at three separate houses. He was injured by police and then arrested. The shooter later said he had intended to commit suicide by cop.[143]
Kirkersville shooting: After taking two people hostage, a man shot and killed a police officer and two nurses at a nursing home before he killed himself.
Cincinnati nightclub shooting: Two men were killed and sixteen people were wounded after a fight escalated into a shooting at a crowded nightclub. One person was arrested.[144]
2016 Townville Elementary School shooting: A fourteen-year-old shot and killed his father before driving to the local elementary school and injuring three students and a teacher. One student later died of his injuries. The shooter was later arrested.[146]
2016 Mukilteo shooting: A student at the University of Washington killed three people and injured one other in a shooting at a party. One of the people he killed was his ex-girlfriend. The shooter was arrested and sentenced to life in prison.[149]
St. Joseph courthouse shooting: A handcuffed inmate killed two bailiffs and injured a deputy and another woman after taking a deputy's gun in a courthouse. The inmate was killed by two other bailiffs.[152]
Pulse nightclub shooting: A gunman, Omar Mateen, killed 49 people and wounded 53 others in a shooting at Pulse, a gay nightclub. The gunman was killed in a shootout with the police.[154]
2016 Wilkinsburg shooting: Six people (including an unborn child) were killed and three were injured by two gunmen in an attack during a backyard party. One person with a handgun drove the partygoers toward a backyard porch, where the second shot at them with an assault-style rifle.[155]
2016 Kansas–Missouri murder spree: Four people were killed at a home and another was shot and killed the following day. The perpetrator was arrested the next day.
Hesston shootings: A man killed three people and injured fourteen others in an attack at his workplace. He had been served with a temporary order of protection shortly before he began shooting. He was killed by police who responded to the scene.[156]
2015 San Bernardino attack: A married couple opened fire on the husband's colleagues at a work training event. They killed fourteen people and injured twenty-two before being killed in a shootout with police. Pipe bombs set at their residence failed to detonate. The two perpetrators are believed to have been radicalized, though not believed to have been directly connected to a specific foreign terrorist organization.[158]
Murders of Alison Parker and Adam Ward: An enraged former employee for WDBJ (Bryce Williams) carried out a preplanned shooting targeting 3 reporters, conducting a live TV interview near Smith Mountain Lake. Alison Parker was fatally shot, and the cameraman Adam Ward was also killed. Vicki Gardner was also shot, but survived. He fled the scene in his car then took off on foot while a massive manhunt was underway. Before police could approach Williams, he committed suicide by shooting himself. He stated that the motive was the Charleston church shooting and possible discrimination at his workplace.[164]
2015 Harris County shooting: A man broke into his ex-girlfriend's home and held her hostage along with her husband and six children, one of whom was his son. Over the course of nine hours, he killed everyone in the home. After a shootout with police, he surrendered and was taken into custody.[165]
2015 Lafayette shooting: A gunman killed two people and injured nine in a shooting at a movie theater. After trying to blend into the crowd leaving the theater, the gunman heard sirens, returned to the theater, and killed himself.[166]
2015 Chattanooga shootings: A man committed a drive-by shooting at a military recruitment center in a strip mall, wounding one Marine. With police in pursuit, he drove to a U.S. Navy Reserve center and rammed his vehicle through a gate. He fatally wounded a Navy sailor, killed four Marines, and wounded a police officer before being killed by a naval commander.[167] The FBI later determined the gunman had been motivated by propaganda published by terrorist organizations.[168]
2015 Waco shootout: Gunfire broke out at a restaurant where members of several motorcycle clubs had gathered to discuss political rights for motorcyclists. Members of the clubs and police were both involved in the gunfire. Nine people were killed and eighteen were injured in the shootout, all members of the motorcycle clubs. The shooting may have resulted from a territorial dispute between two of the motorcycle clubs.[171]
2015 Tyrone shooting: A man killed seven people and wounded one after going door-to-door and shooting people in four separate homes. Four of the people he killed were family members. The man then killed himself. The shooting was possibly motivated by the man finding his mother dead from natural causes.[172]
2014 Montgomery County shootings: Six people were found dead and one wounded in three locations across Montgomery County. The shooter was found dead the next day after committing suicide by overdose. One of the victims was the shooter's ex-wife, the others were her relatives.[173]
2014 Harris County shooting: A man killed six of his family members and wounding a seventh. He was arrested after a brief chase and a standoff that lasted several hours.[175]
2014 Isla Vista killings: Several hours after stabbing and killing his three roommates, Elliot Rodger drove to a sorority house near the University of California, Santa Barbara and knocked on the door. After receiving no answer, he began shooting at people nearby, killing two members of another sorority and injuring a third. He then returned to his car and continued to shoot at random people from within his vehicle before killing himself with a gunshot.[176] The attack is believed to have been motivated by the killer's hatred of women and frustration with his dating and family life.[177]
2014 Fort Hood shootings: After being denied leave from the Fort Hood military base where he was stationed, a man killed three people and injured fourteen before killing himself.[178]
Ross Township Municipal Building shooting: A man entered a meeting of township supervisors and killed three people, injuring three others. The gunman was also injured when his gun went off and hit his own leg as two men wrestled him to the ground and took away his weapon. The shooting was suspected to be motivated by a longstanding feud in which the gunman's property rights had been taken away. He was sentenced to life in prison.[181][182]
Herkimer County shootings: A man set fire to his apartment, shot and killed two people and injured two others at a barbershop, and shot and killed two people at a car wash. The shooter was cornered in an abandoned bar by police, leading to an overnight standoff. A police dog was sent into the building the next morning: when the man shot and killed the dog, the police returned fire, killing the man.[185][186]
2012 Webster shooting: A man set fire to his home and the family car before opening fire on responding firefighters, two were killed and three wounded before he committed suicide, a fourth body was found in the house.[188]
Clackamas Town Center shooting: A 22-year-old opened fire at the town center wearing a hockey mask, and killed two people and injured a third before fumbling with his weapon and being unable to reload. He committed suicide in a stairwell of the location.[189]
Fresno meat plant shooting: A man shot four coworkers, two fatally, at the meat processing plant he worked at before walking outside and fatally shooting himself in the head.[190]
Azana Spa shooting: The perpetrator drove to his ex-wife's work place and waited until she was there to confront her and shot and killed her and two other women, and injured four others before committing suicide.[191]
Accent Signage Systems shooting: A former employee entered a local sign-making business, and killed five and wounded four; two of the four later died of their wounds, the perpetrator committed suicide.[192]
2012 College Station shooting: The perpetrator fatally shot an officer attempting to serve him a notice to appear in court, he then injured a neighbor and engaged in a shootout with responding officers until he was killed by the officers.[194]
Wisconsin Sikh temple shooting: The perpetrator, a member of the Hammerskins and various white power and neo-Nazi bands, fatally shot six people at a Sikh temple before being killed by responding police officers.
Seattle cafe shooting spree: A patron who had been previously thrown out of the cafe, entered and killed four people and wounded one, shortly after he killed a woman during a carjacking and then committed suicide.[195]
Gilbert home shooting: A neo-Nazi shot and killed his girlfriend, her daughter, the daughter's boyfriend, and their infant daughter, before killing himself.
Seal Beach shooting: A man entered his ex-wife's workplace and shot and killed eight people and injured one. He then fled the scene and was later arrested.
Carson City IHOP shooting: A man opened fire inside and outside an IHOP, and then targeted nearby local businesses. He killed four people and injured seven before committing suicide.
2011 Copley Township shooting: A man killed seven people; including a 16-year-old and an 11-year-old, and injured one between three homes before being killed by responding police.[198]
Grand Rapids mass murder: A man killed seven people and wounded two in a spree shooting in two homes, then took hostages in a third before committing suicide.
2011 Tucson shooting: A man killed six people and injured fifteen during an assassination attempt of U.S. Representative Gabrielle Giffords before he was tackled and arrested. Giffords was wounded in the attack but survived.
Hartford Beer Distributors shooting: An employee of Hartford Distributors, a beer distribution company, was fired. In retaliation he shot and killed eight coworkers and injured two others before committing suicide.
2010 West Memphis police shootings: A father and son shot two police officers during a traffic stop, killing both, before getting into a shootout with officers in a Walmart parking lot. In the shootout both shooters were killed and two more officers wounded.
Penske office shooting: A former employee of a Penske truck rental business shot five people, four employees and one customer, at the business. Four people were killed and a fifth injured.
ABB plant shooting: An employee opened fire in the parking lot of an ABB Group power plant before entering the factory. He killed three people and injured five before committing suicide.[201]
2009 Lakewood shooting: A man killed four police officers at a coffee shop and fled the scene with a gunshot wound. He was killed by police two days later.[202]
2009 Collier Township shooting: A man entered a woman's aerobics class and opened fire, killing three people and injuring nine before committing suicide.[206]
Carthage nursing home shooting: A man attacked the workplace of his estranged wife, killing eight people and wounding two others before being arrested.
Covina massacre: A man entered his former in-laws' home armed with four handguns and a homemade flamethrower. He killed nine people and injured three before committing suicide.[209]
Knoxville Unitarian Universalist church shooting: A former truck driver opened fire at a church during a church youth performance, killing two and wounding six before being restrained by churchgoers. A manifesto written by the gunman attributed the shooting to hatred of liberals, Democrats, African-Americans, and homosexuals.
Northern Illinois University shooting: A former graduate student entered a lecture hall and opened fire, killing five people and wounding twenty-one before committing suicide.
Kirkwood City Council shooting: A man opened fire during a public city council meeting, killing six people and injuring one other before being shot and killed by police.[210]
Browning family murders: A fifteen-year-old boy shot and killed his parents and two brothers in their home. The gunman allegedly killed his family so he would not be required to share his inheritance.[212]
Crandon shooting: An off-duty sheriff's deputy entered a homecoming party at a duplex with a semiautomatic rifle and killed six people and wounded one. He killed himself later that day.
Neosho church shooting: A man killed three people and wounded five others at a church, specifically targeting church leaders. The shooter surrendered to law enforcement.[214]
Vaughn family murders: Four family members were fatally shot and another wounded inside a car. The wounded husband was arrested and convicted of the murders.[215]
Virginia Tech shooting: A 23-year-old student killed thirty-two students and teachers, and wounded seventeen others. Other people were injured attempting to escape. When police stormed the building he was in, the shooter killed himself.
Trolley Square shooting: A man opened fire in a parking garage and shopping mall and killed five people and injured four others before being killed by police.
West Nickel Mines School shooting: A man took hostages in an Amish schoolhouse, and killed five schoolgirls and injured five others before committing suicide.
Seattle Jewish Federation shooting: The perpetrator forced his way into the building, repeatedly shouting that he was angry at Israel and wanted to make a statement, he killed one and injured six.[216]
2006 Denver shooting: A man fired a handgun at his co-workers in a Safeway warehouse, killing one and wounding four. The perpetrator was killed and an officer was wounded in a gunfight with police.[217]
Capitol Hill massacre: A guest returned to a house party armed with a shotgun and a semiautomatic handgun. He shot indiscriminately, killing six people and injuring two, before committing suicide.
Goleta postal facility shootings: A woman killed her neighbor before driving to the mail processing plant, where she shot and killed six people before committing suicide.
Tacoma Mall shooting: A man attempted suicide by cop by opening fire in a shopping mall with an illegal MAK 90 semi-automatic rifle and a pistol. He injured six people and took four hostages before surrendering to a SWAT team.
Oklahoma City home shooting: Several men invaded a trailer home and forced four people outside, where they were shot to death with a rifle. The perpetrators believed that one of the victims had been responsible for a motorcycle accident that left one of the perpetrators severely injured.[219]
Tyler courthouse shooting: A man shot his ex-wife and son outside a courthouse, killing his wife. Following a shootout the man shot a resident who tried to intervene, before fleeing and dying after a shootout with police.
Wesson family murders: A man convicted of the molestation and murders of his children and nieces shot and killed nine members of his family during a standoff over a child custody dispute.[223]
2003 Sugar Land murders: A friend of a man shot three of the man's family members, killing two. The two then staged a struggle in which the friend shot the man. The man escaped to Mexico and was apprehended in 2005.[224]
Clear Lake murders: A seventeen-year-old girl, accompanied by her boyfriend, shot and killed four people following an argument over drugs. One of the victims was also beaten.[226]
2003 Ennis shooting: A man opened fire on a group of people outside of a bar, and then engaged in a high speed chase and shootout with law enforcement, he killed one and injured 10 including himself.[229]
Appalachian School of Law shooting: A former student opened fire after a meeting with a professor in the offices of the dean of students and a professor, killing them and a student and injured three other students before he was subdued by a Marine veteran.[232]
JB's Pub shooting: A man kicked out of a bar for harassing female customers and employees went home, retrieved several guns, and opened fire, shooting 16 people, 2 fatally. Five other people suffered cuts and bruises.[233]
Santana High School shooting: A 15-year-old student entered a boys bathroom and shot another student then left and began to fire widely, another student was killed and thirteen were injured.[234]
2001 Navistar shooting: A 66-year-old man entered his old workplace with an AK-47 and shot eight people, killing four, before turning the gun on himself.[235]
Irving car wash shooting: A former employee entered a car wash and shot and killed five people and wounded another during a robbery. One of the victims also had his throat slit.[239]
Summary list since 2018 which includes all mass shooting events, deaths, injuries, and victims documented across Wikipedia. Sources for these statistics can be found in the corresponding articles.
Server gunviolencearchive.gov provides data about mass shootings from the beginning of 2013, including the date, U.S. city and state, number of killed, number of wounded, perpetrators, and sources on internet. Following are some reports out of this data.
Summary for the years 2013 through 2017 (inclusive) with at least 4 victims per event.
Year
Events
Dead
Injured
Victims
2017
434
600
1994
2594
2016
479
606
1790
2396
2015
371
469
1387
1856
2014
325
364
1213
1577
2013
339
467
1176
1643
Summary for the years 2013 through 2017 (inclusive) with at least 4 people killed per event.
Year
Events
Dead
Injured
Victims
2017
249
600
1113
1713
2016
270
606
851
1457
2015
212
469
622
1091
2014
180
364
512
876
2013
209
467
551
1018
Top 10 U.S. States with most mass shootings each year.
Year
States with most mass shootings
2024 (Jan-Jul)
FL/IL (31), CA (26), TX (22), PA (21), MO (19), MS/AL (18), GA/NC (16)
2023
CA (58), IL (54), FL/PA/NC (36), OH (35), LA (33), GA (30), MS (26), TN (25)
2022
TX (63), IL (61), CA (58), GA/PA (39), NY (36), FL (34), LA (33), MI (29), NC (27)
2021
IL (91), TX (72), CA (54), OH (43), NY (41), PA/LA (39), FL (34), AL (31), MI/GA (28)
2020
IL (77), TX (50), CA (44), FL (41), NY (39), PA (36), LA (33), MO (27), OH (26), MI (25)
2019
CA (54), IL (45), TX (42), LA (28), MD (25), PA (24), OH (21), GA/FL (20), MO (19)
2018
CA (45), IL (41), FL (37), TN (23), TX (21), PA (20), MO (19), NC/NY/AL (17)
2017
CA (49), IL (41), TX (30), FL (29), OH (26), PA (20), LA (19), NY/TN (15), NJ (14),
2016
CA (52), IL (46), TX (44), FL (35), GA (23), AL (22), NY/LA (17), OH (16), TN (15),
2015
FL (30), CA (28), IL (26), NY (22), GA/TX (21), LA (18), OH (16), MD/PA (14)
2014
CA (43), IL (33), FL (22), TX (21), GA (19), MI (15), NY/TN/PA (13), LA (12)
2013
CA (47), FL/IL (21), NC (17), NY (16), MI/TX/PA (15), MO (13), TN/VA/OH (11)
Deadliest months in the U.S. (regarding mass shootings) each year.
Year
Deadliest months
2024 (Jan-Jul)
Jun (80), Jul (70), May (54), Jan (46), Mar (44)
2023
Jul (92), May (88), Jun (80), Apr (75), Oct (70)
2022
Jul (103), Aug (78), Jun (77), Sep (76), May (74)
2021
Jun (98), Jul (95), May (92), Oct (83), Aug (81)
2020
Jun (106), Jul (101), Aug (83), Sep (70), May (70)
2019
Jun (60), Jul (57), Aug (56), May (53), Dec (44)
2018
Jul (60), Jun (59), Sep (41), May (38), Aug (37)
2017
Jul (46), Apr (46), Jun (44), Jan (43), Aug (41)
2016
Jul (59), Jun (53), Aug (51), Nov (43), Sep (42)
2015
Jul (45), Jun (42), Aug (41), May (38), Sep (38)
2014
Aug (50), Jul (34), May (29), Sep (28), Dec (27)
2013
Jun (39), Jul (38), May (34), Sep (33), Aug (32)
Months with most mass shooting events.
Month
Events
July
800
June
763
August
632
May
631
September
521
April
511
October
501
November
425
March
416
January
403
February
373
December
360
Months with most casualties in mass shootings.
Month
Dead
June
826
July
784
May
729
October
690
August
644
January
633
April
606
February
567
November
561
September
537
March
524
December
487
US Mass Shootings, 1982–2024 – Data From Mother Jones’ Investigation
Data from the article from Mother Jones[241] compile data about 150 mass shootings from 1982, 22 of which classifies as a "Sprees". The data reveal, among other things:
the age of perpetrator(s). The youngest was 11, the oldest 72, the average is 33 years and 8 months.
the gender of perpetrator(s). Out of 150 events listed, 144 of them are committed by males, 4 by females, 2 by male and female. First shooting perpetrated by a female from the list is from 2006.
1999 Honolulu shootings: A service technician opened fire inside a Xerox building and killed seven people while an eighth escaped, he then held thirty-five school children inside the Hawaii Nature Center before surrendering to police.
Wedgwood Baptist Church shooting: During a concert in the church for teenagers, the perpetrator entered and shot and killed seven attendees and wounded seven others before committing suicide.
1999 Atlanta day trading firm shootings: The perpetrator bludgeoned his wife and two children to death within the two days before he entered two separate Buckhead firms. There, he shot fellow traders, killing an additional nine and wounding thirteen, committing suicide afterwards.
1999 Las Vegas shooting: A man entered an Albertson's supermarket and shot indiscriminately with a shotgun. He killed four people and wounded another before being arrested.[242]
Thurston High School shooting: An expelled student targeted his parents and the school and killed four people and injured twenty-five others before being arrested.
1998 Parker Middle School dance shooting: A 14-year-old student opened fire and fatally shot a teacher and injured another and two students during an 8th grade dance, before being arrested.[245]
Pine Bluff shooting: A man shot and killed his girlfriend and four others. He was taken into custody after being shot in the arm during a standoff.[246]
1998 Westside Middle School shooting: Two students aged 11 and 13, shot and killed four students and a teacher and injured ten others before being arrested.
Connecticut Lottery Headquarters shooting: A disgruntled accountant employed by Connecticut's lottery headquarters shot and stabbed four of his supervisors to death before taking his own life by gunshot.[247]
Bartow shooting: A man killed three former business partners at a manufacturing plant, as well as a visiting relative of two of the other victims. The suspect was convicted of murder and sentenced to death.
1997 Heath High School shooting: A 14-year-old student opened fire on a group of students praying before the school opened, killing three and injuring five before surrendering.[248]
Shelbyville shooting: A man killed his three children and their half-sister with a semi-automatic rifle at his workplace. He surrendered to police shortly after.[249]
Channelview shooting: A man killed five people with a rifle, including his ex-wife, at a party. The shooter was convicted of murder and executed by lethal injection in 2016.
1997 Pearl High School shooting: The perpetrator fatally stabbed and bludgeoned his mother, then drove to the high school and shot and killed two students and injured seven before being arrested.
Colebrook shooting: After killing two New Hampshire State troopers in a supermarket parking lot, a gunman drove to the office of a district judge, killing her and a newspaper editor who attempted to disarm him. Police pursued the gunman to Vermont, where he wounded four more police officers in a gunfight before being killed by police.
1997 Detroit shootings: An armed gunman opened fire killing three people and wounding two others in northeast Detroit before being killed by police.[251]
North Hollywood shootout: Upon leaving a bank, two heavily armed bank robbers were confronted by the LAPD. The robbers proceeded to open fire on the police in an attempt to escape. During this attempt, both of the robbers got shot. Following this, one of them took his own life, while the other one was mortally wounded. Out of the 20 injured, 12 were police officers, and 8 were civilians
1997 Bethel Regional High School shooting: A student shot and killed two people and wounded two others before surrendering to police. He was reportedly assisted by several students in learning how to shoot, and many knew about the shooting plans in advance.
Tardy Furniture shooting: Four people were shot to death at a furniture store. Curtis Flowers, a former employee of the store, was convicted of the murders, but these were overturned due to racial bias. The fourth and fifth trials ended as mistrials, and a sixth trial found Flowers guilty, but this was overturned by the Supreme Court in 2019. In 2020, the Mississippi Attorney General announced she would not pursue a seventh trial against Flowers.
1996 Jackson firehouse shooting: After killing his wife at home, a firefighter shot four supervisors and wounded two other coworkers, before leading officers on a chase and wounding one in a shootout.
Freddy's Fashion Mart attack: A man entered a store, setting it on fire and wounding four customers with a revolver as they fled. Police found the gunman dead of a self-inflicted gunshot wound and seven employees dead from smoke inhalation.[253]
1995 Fort Bragg shooting: An Army sergeant opened fire on other soldiers with a rifle, killing one person and wounding eighteen others before being subdued and disarmed.[254]
Wickliffe Middle School shooting: A 37-year-old former student entered the building and shot and killed the custodian and wounded three other adults before he was arrested.[255]
Fairchild Air Force Base shooting: A former airman who had been discharged returned to the base hospital and killed four people and injured twenty-two others before being shot and killed by responding police.
1994 Popeyes shooting: Two robbers entered a Popeyes restaurant and led four employees into the freezer, where they opened fire. Three employees were killed and another wounded.[256]
Long Island Rail Road shooting: A passenger opened fire on other passengers and killed six and wounded nineteen before being subdued by three passengers and arrested.
Luigi's Restaurant shooting: A soldier entered a restaurant and shot indiscriminately, killing four people and wounding seven others before being shot and wounded by an off-duty police officer.[258]
1993 Iowa murders: A man involved in the manufacturing of methamphetamine executed a dealer and his family after the dealer was set to testify against him.[259]
101 California Street shooting: The perpetrator opened fire in an office building, killing eight people and wounding six others before committing suicide.
1992 Bard College at Simon's Rock shooting: The perpetrator, Wayne Lo, had been stockpiling ammunition and weapons in his dorm, and after several alarms had been raised by third parties, he opened fire and killed a professor and student and wounded four others.[262]
1992 Lindhurst High School shooting: A 20-year-old past student opened fire on a classroom and killed four people, wounded ten others, and held eighty people hostage during an eight-hour siege before he surrendered.
1991 Austin Yogurt Shop murders: Four teenage girls aged; 13, 15, 17, and 17-years-old were shot and killed execution style after being stripped and bound with their own clothes, the store was also robbed and set on fire.[264]
Royal Oak post office shootings: A former postal worker, who had been fired and had previously sent threats to the post office, shot eight people, killing four, before killing himself. Three others were injured escaping or hiding from the gunman.
University of Iowa shooting: A former graduate student attended a meeting for a research group before opening fire and killed five individuals and injured one before committing suicide.
Killeen, Texas, Luby's Restaurant shooting: A former Merchant Marine drove his vehicle through the front window of the restaurant before opening fire on a crowd of about eighty people, killing twenty-three and injuring twenty-seven. He then committed suicide.
Father's Day Bank Massacre: A bank robber killed four unarmed guards during a robbery. A retired police officer was arrested for the crime, but he was acquitted. The case remains officially unsolved.
Sacramento Hostage Crisis: For eight hours forty-one people were held hostage inside an electronics store, by four Vietnamese refugees who killed three and injured 14. Three of the four perpetrators were shot and killed by responding police.[267]
GMAC Office shooting: A convicted felon returned to the loan office he had used to purchase a car and opened fire, killing nine people and injuring four before committing suicide.
Las Cruces bowling alley massacre: Two unknown perpetrators entered the bowling alley and killed four people and injured three before fleeing. One of the injured died in 1999. The case is still unsolved.
Standard Gravure shooting (1989): A 47-year-old pressman killed eight people and injured twelve at his former workplace, Standard Gravure, before committing suicide.
Cleveland Elementary School shooting: A drifter used a semi-automatic rifle to kill five children and wound thirty-two other students and teachers on the school playground before committing suicide.
Oakland Elementary School shooting: The perpetrator shot and killed two eight-year-old students and wounded nine others (seven students, a teacher, and a gym coach) in the school's cafeteria and a classroom before being arrested. He was sentenced to death.
Old Salisbury Road shooting: The perpetrator shot nine passers-by from the center line on the road, killing four and injuring five before being arrested.
Attacks by Laurie Dann: The perpetrator entered the Hubbard Woods Elementary School and killed one student and wounded five others before entering a home and holding the inhabitants hostage before committing suicide.
Sunnyvale ESL shooting: After stalking his coworker, the perpetrator entered the ESL building with several weapons and shot at employees and bystanders, killing seven people and wounding four before surrendering to police and SWAT officers.[271]
Murders by Ronald Gene Simons: The perpetrator murdered sixteen friends and family—eight by gunfire, seven by strangulation, and one by drowning—and wounded four others before being arrested.[272]
Shelby bookstore murders: Several men shot five people execution-style at an adult bookstore, killing three, before setting the establishment on fire. Two men were charged for the killings but were either acquitted or had their charges dismissed, and the crime is officially unsolved.
Oakland home-invasion murders: A man and his girlfriend broke into his ex-girlfriend's home and shot the ex-girlfriend and her family members, killing six and wounding two.
Edmond post office shooting: A part-time employee entered to begin his day before locking the doors and killing fourteen coworkers and injuring six others before committing suicide.
1986 FBI Miami shootout: Two suspects in several violent crimes opened fire on pursuing FBI agents after being forced off the road. Both suspects and two FBI agents were killed in the shootout, 5 FBI agents were wounded.
Springfield Mall shooting: The perpetrator fired first at customers outside the Springfield Mall, and then moved inside and killed 3 and wounded 7 before she was disarmed.[273]
Murray-Wright High School shooting: During half-time at a football game, the perpetrator opened fire with a shotgun on individuals that he had earlier fought with and wounded six.
Geronimo bank robbery murders: A 19-year-old man entered a bank and lured three tellers to a back room, where he stabbed them to death. He then lured four customers to the back and shot them with a pistol, killing one. He was arrested with an accomplice three days later.[275]
Los Angeles home invasion murders: Two men invaded a home and shot and killed four people before being scared off by survivors. The shooters were later arrested.[276]
San Ysidro McDonald's massacre: A male suspect entered a busy McDonald's and opened fire with an Uzi, shotgun and semiautomatic pistol, and killed twenty-two people (including an unborn child) and injured nineteen before being killed by a police sniper.
1984 Dallas nightclub shooting: After being rejected by a woman, a Moroccan national killed her and shot four other people at a nightclub, before returning and shooting two more people. The perpetrator could not be sentenced to death due to local laws, resulting in changes to penalty laws in Texas.
Manley Hot Springs shooting: A man killed seven residents of a remote Alaskan village at a boat landing. After a manhunt, the gunman shot two state troopers pursuing him in a helicopter, killing one, before he was shot and killed by a third trooper.
Palm Sunday massacre: During a believed home invasion ten people—three adults, one teenager, and six children—were killed. An infant was left unharmed.[277]
49th Street Elementary School shooting: The perpetrator fired on children on a school playground from his home across the street, and killed two individuals and injured twelve others before committing suicide.
Orlando courthouse shooting: A man opened fire in a courthouse with multiple guns, fatally shooting three officers before he was injured by return gunfire and arrested.[278]
Grayson County hangar shooting: Four men were found shot to death execution-style in an airplane hangar. A man was arrested and sentenced to death for the crime.[279]
Homer Township shooting: A serial killer killed two people in a car along the road before killing two police officers who pulled over to help. He also shot and killed a passing motorist.[280]
Wah Mee massacre: Three perpetrators entered a gambling club at the Louisa Hotel during a robbery and killed thirteen people and wounded one in an attempt to leave no witnesses.[282]
1982 Wilkes-Barre Shootings: The perpetrator used an AR-15 to shoot and kill thirteen people and injure one in his home and the home of a former girlfriend. A four-hour standoff occurred before officers were able to arrest and hold him on several charges.[283]
Welding shop shooting: A teacher opened fire inside a welding shop, killing eight people and injuring three before attempting to flee by bicycle; he was run down as he cycled away.
Rock Road massacre: Livestock auctioneer Robert Lee Haggart shot and killed six members of the Post family on the day before a court hearing to finalize his divorce from one of the victims.
Oregon Museum Tavern shooting: The perpetrator entered the location and fired, killing five people and injuring eighteen before he was wrestled to the ground.
1980 Greenwich Village shootings: A man targeting the LGBT community used a submachine gun to kill two people and wound six at multiple gay bars before being arrested.[284]
Cleveland Elementary School shooting: A 16-year-old girl who lived across the street shot and killed two people and injured nine others before being arrested.
Blackfriars massacre: Four known criminals and a former Boston television investigative news anchorman and reporter were all killed in a supposed sale of cocaine.
1978 Sacramento murders: A serial killer entered a home and shot and killed four people, including two children. The shooter engaged in necrophilia and cannibalism with the corpse of one of the victims. He was arrested shortly afterwards.
Golden Dragon Massacre (1977): Five members of a Chinese youth gang attempted to kill rival gang members, which quickly turned into a shootout in which five people died and eleven were injured.
Carol City massacre: Three men entered a home, where they tied up eight people and shot them in the head execution-style. Six people died, while two survived.[286]
Computer Learning Center shooting: A student opened fire on his peers at their computer school, killing one and injuring six. He was then shot and wounded by a nearby security guard.[288]
1975 Dayton shootings: After killing his girlfriend and wounding two others at a motorcycle club, a man shot several more people in the neighborhood, killing another woman and wounding nine. The wounded included two women the gunman held hostage and raped. The gunman died by suicide as police closed in on him.
Easter Sunday Massacre: The perpetrator shot and killed his mother, brother, sister-in-law, and eight nieces and nephews in five minutes before calling police and being arrested.[289]
1974 Olean High School shooting: A student locked himself in a third-floor room before shooting out the window, killing three people and injuring eleven before being subdued with tear gas and arrested.
Hi-Fi murders: Three men robbed a Hi-Fi store in Ogden, Utah and took five people hostage by tying them up and torturing them, then shooting three of them to death and injuring two more.[291][292][293][294][295]
1973 Los Angeles shooting: A man shot sixteen people in the South Side of Los Angeles, killing seven and wounding nine. The gunman was sentenced to life imprisonment.
Santa Cruz park murders: A serial killer shot and killed four teenagers with a pistol as they camped. He believed that his victims were "polluting" the forest.[298]
Howard Johnson's shooting: Over the course of ten hours and in several locations the perpetrator, having previously killed two police officers and wounded a third, killed seven people and injured ten before being shot and killed by police.
1972 Baton Rouge shooting: A shootout occurred between black protesters and police officers, killing four people and wounding thirty-two others. A fifth man died of his wounds two weeks later.[301]
Murders by John List: John List shot and killed his wife, mother and three teenage children in a belief that he needed to save their souls through death, he was arrested in 1989 after living under an assumed name after a neighbor recognized him from America's Most Wanted.[302]
Hazelwood massacre: Eight people were found shot to death in a home. Several men were seen leaving, but no arrests were ever made and the case remains unsolved.
1971 Shooting of Dallas Police Officers: Two men abducted five law enforcement officers, before opening fire and killed three and injured one. The fifth officer escaped and called for help.[303]
Marin County Civic Center attacks: The 17-year-old perpetrator took hostages in a court room in an attempt to coerce the release of the Soledad Brothers. Three prisoners released during the siege joined him in the attack, which left the main perpetrator dead along with three others and two others wounded.[305]
Newhall incident: Two men were stopped by two California Highway Patrol officers and opened fire after briefly cooperating with the officers, killing both officers and then engaging in a shootout with other CHP officers and a bystander. After the fleeing from the scene, one of the perpetrators fled to a house and took a hostage, which he later released and committed suicide. The second perpetrator, who was injured by gunfire was arrested after trying to escape with a stolen camper. 4 CHP officers were killed. 1 perpetrator and a civilian were injured.
Jackson State University shooting: After responding to the university due to a growing unrest, officers opened fire on a dorm building and two students (one from a local high school) were killed and twelve were injured.
Kent State shootings: During a protest of the bombing of Cambodia at the university, members of the Ohio National Guard opened fire, killing four and injuring nine people.
Westernville New Year's Day shooting: A man opened fire at a family gathering, killing four people and wounding five others. He lost his life to suicide the following morning.[307]
Glenville shootout: A gun battle between the Cleveland Police Department and the Black Nationalists of New Libya led to six people being killed and at least twelve injured, and sparked the Glenville Riots.[308]
Robison family murders: While vacationing, a family was shot and killed, with the parents also bludgeoned with a hammer. The investigation continued for fifteen months after the bodies were discovered.[309]
South Carolina State University shooting: After responding to the scene of about 200 protestors protesting racial segregation, after an officer was assaulted, officers began to shoot into the crowd; three people were killed and twenty-seven injured.
1967 Clinton County, Pennsylvania shootings: A man opened fire at his workplace in Lock Haven, killing 5 before driving to a nearby airport and wounding a woman. He then drove to Loganton where he fatally shot his neighbor and wounded his wife. The shooter was fatally shot by police after a gunfight.[311]
1966 Rose-Mar College of Beauty shooting: A gunman inspired by other mass murderers held seven women at gunpoint at a cosmetology college, including two babies, before fatally shooting five of them and wounding two.
University of Texas tower shooting: A student and former Marinesharpshooter killed his wife and mother before using the University of Texas clock tower as a sniper's nest to kill 15 people, including a pregnant woman, and wound 31 before being killed by police.
1966 Paterson, New Jersey bar shooting: Two men opened fire in a bar, killing three people and wounding another. A boxer and another man were wrongfully convicted and imprisoned for 18 years.[312]
1965 Highway 101 sniper attack: A 16-year-old stole his father's military rifle and shot at automobiles driving down the highway, killing two and injuring eleven before committing suicide. A third victim died later at the hospital.[313]
Walker Family Murders: A husband and wife were murdered along with their two children after returning home. The wife was also raped prior to being killed.[315]
Battle of Hayes Pond: During a publicized Ku Klux Klan rally there was a clash between Lumbee Indians and Klan members, causing a disruption of the rally and four Klansmen to be wounded. Most of the resulting news coverage condemned the Klansmen and praised the Lumbees.[317]
Franklin Township shooting: A man shot his wife and her family members in three homes, killing five of her relatives and wounding his wife and three others.
Rio Piedras Massacre: During a student assembly armed guards had been requested in case of violence. After stopping a suspicious vehicle a struggle ensued and four members of the Puerto Rican National party were killed as well as a bystander and a student and officer wounded.[322]
Kelayres Massacre: An election-eve parade and rally was shot at as it passed by the home of the local Republican boss, three victims died and between twelve and twenty-five were wounded.[323]
Kansas City Massacre: Four law enforcement officers and a fugitive were killed, with three law enforcement officers wounded in a shootout between the two groups.[325]
Murder of the Lawson family: Charles Lawson shot and killed his wife and five children, and bludgeoned his youngest child to death, before committing suicide. The second eldest child survived after being sent on an errand.[329]
Fairfield massacre: The perpetrator, armed with a lever-action rifle and a hatchet, attacked the ranch where he used to work, killing eleven people before fleeing.[331]
Columbine Mine Massacre: A fight broke out between striking coal mine workers and Colorado state militia. The unarmed miners claimed that they were fired upon by a mine tipple or machine gun, which is disputed by police.[332]
Hanapepe Massacre: During a strike of Filipino sugar workers, in an attempt to rescue two hostage strikebreakers police killed 16 strikers, while strikers killed four law enforcement members.[333]
Rosewood Massacre: The massacre was a racially motivated massacre and destruction of the town of Rosewood after a white woman claimed she was beaten and raped by a black man. The town was overrun by a white mob who hunted for the black inhabitants who had fled the area and hid in surrounding swamps before being evacuated. Six black and two white individuals were killed and between 27 and 150 were wounded.[334]
Tulsa race massacre: Armed white mobs attacked black residents and businesses in the Greenwood District of Tulsa, then the wealthiest black community in the U.S., known as "Black Wall Street".[338]
Ocoee massacre: White mob attack on African-American residents on day of the 1920 presidential election. Started because a black man wanted to vote. All black-owned property seized and population reduced to 0 for 60 years.[339]
1902 Tuscumbia shooting: A man shot at police who attempted to arrest him, killing seven people and wounding two others. The gunman was shot dead.[341]
1900 New Orleans shootings: A man armed with a rifle and revolver shot and killed seven people and wounded twenty others over several days as police attempted to arrest him. He was shot dead.[342]
Colson-Scott duel: Two army officers exchanged gunfire within a hotel. One of the shooters was killed along with two bystanders, while the second shooter and three passersby were wounded.[343]
^ abcBjelopera, Jerome (March 18, 2013). "Public Mass Shootings in the United States"(PDF). Congressional Research Service. Archived from the original(PDF) on September 9, 2013. Retrieved August 26, 2018. There is no broadly agreed-to, specific conceptualization of this issue, so this report uses its own definition for public mass shootings.
^Follman, Mark; Aronsen, Gavin; Pan, Deanna (September 20, 2018). "A Guide to Mass Shootings in America". Mother Jones. Archived from the original on May 28, 2019. Retrieved August 26, 2018.
^Vojtech, Jim; Newcomb, Alyssa; James, Michael S. (May 31, 2012). "Seattle Cafe Shooter Kills 5, Self". ABC News. Archived from the original on June 19, 2019. Retrieved July 9, 2019.
^Hays, Kristen (September 10, 1999). "Edinboro teen killer sentenced". Pittsburgh Post-Gazette. Archived from the original on January 1, 2019. Retrieved January 1, 2019.
^Hamman, Phil & Sandy (2019). Gitchie Girl Uncovered: The True Story of a Night of Mass Murder and the Hunt for the Deranged Killers. Little Elm, Texas: Electio Publishing. ISBN9781632137005.
^Where Sadness Breathes: The True Story of Willie Steelman and Douglas Gretzler and the 17 People they Murdered in the Autumn of 1973 ASINB07MX4VW4K p. 247
^"GLENVILLE SHOOTOUT". Encyclopedia of Cleveland History. Case Western Reserve University. August 2, 2018. Archived from the original on November 15, 2020. Retrieved June 20, 2019.
^Jones, M. Bruce (1990). White Christmas Bloody Christmas: Finally the true story of the Lawson Family Murders of Christmas Day 1929. North Carolina: Trinity. ISBN978-0962810800.
^"Annual and Pacific Coast convention: Salt Lake City, Utah, June 21–24, 1921". Journal of the American Institute of Electrical Engineers. 40 (6): 527–530. June 1921. doi:10.1109/joaiee.1921.6593023. ISSN0360-6449. S2CID51635833.