He also employed the services of Ilich Ramírez Sánchez, better known as "Carlos the Jackal", whom he had met in 1970 and trained in guerrilla warfare techniques. Haddad decided to expel Sánchez from his team after Sánchez had been accused of refusing to kill two hostages, and possibly stealing ransom money, following the 1975 assault on the OPEC conference in Vienna. Haddad organized the Entebbe hijacking in June 1976.