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
1975 assault
OPEC siege
Wadie Haddad