Jamison was born and lived in New Orleans until his family was displaced by Hurricane Katrina in 2005 and settled in Houston, Texas.[1] He attended Lamar High School, where he played football and ran track.[2] Jamison was rated a four-star recruit and committed to play college football at Texas over offers from Michigan, Oregon, TCU and USC.[3]
College career
Jamison played wide receiver and returned punts and kicks during his freshman season.[4] He was moved to cornerback prior to the start of his sophomore year and finished the season with 35 tackles, 3.5 tackles for loss, a forced fumble and a fumble recovery, three interceptions, and three passes broken up and also returned nine punts for 118 yards and one touchdown.[5] Jamison had 31 tackles with six passes up as a junior and was named honorable mention All-Big 12 Conference as a returner after returning 17 kickoffs for 564 yards and one touchdown. and four punts 102 yards.[6][7] He made 48 tackles with one interception while also returning 19 kickoffs for 424 yards and 12 punts for 105 yards during his senior season.[8] Jamison decided to utilize the extra year of eligibility granted to college athletes who played in the 2020 season due to the coronavirus pandemic and return to Texas for a fifth season. He had 25 tackles with two interceptions, one of which he returned for a touchdown, and seven passes defended in his final season.[9]