Claims have been made he was the true target for assassination, for he had documents concerning the 1980 October Surprise theory and was planning on taking them to the United Nations's General Assembly. According to these affirmations, Reagan promised to sell American weapons to Iran, to replace the old Portuguese ones; the Portuguese military were acting as middlemen (two of the Portuguese Presidential candidates, in 1980, were Generals, and one of them was promptly accused as responsible for the assassination by many Sá Carneiro supporters); a boat with the weapons was almost seized at Lisbon's harbor. These affirmations are reinforced with the fact that Amaro da Costa was the one renting the plane, and Sá Carneiro a last minute passenger (possibly as a decoy).
He married Maria Manuel Simões Vaz da Silva Pires (August 26, 1946 – Loures, Camarate, December 4, 1980), daughter of Gustavo Correia Barata da Silva Pires and wife Maria Manuela da Silva Casaleiro Simões Vaz, without issue.
He was the brother of Manuel Rafael Lopes Amaro da Costa and the brother in law of politicianRoberto Carneiro.
Ancestors
Ancestors of Adelino Manuel Lopes Amaro da Costa[1]