In 1981 , Canadian writer George Jonas was approached by Collins Canada about meeting with Juval Aviv , a former Mossad officer who said that he had led Operation Wrath of God , an operation to assassinate the Palestinian militants who carried out the 1972 Munich massacre , in which they took hostage and killed 11 Israeli athletes . In a joint deal , two Toronto-based publishing houses , Lester & Orpen Dennys and Collins Canada Ltd , commissioned Jonas to research and write Aviv 's account
Munich massacre
Munich massacre
Juval Aviv