French intelligence , while privately fingering Mossad , at the time announced publicly that the responsibility for his death was to be traced to the Abu Nidal Organization , a claim maded by an anonymous telephone caller stating he represented Abu Nidal , but which was quickly denied by that group . An anonymous caller phoned the bureau of the United Press International , claiming the murder was the handiwork of the Kahane Chai organization , and executed to revenge the killing of Rabbi Meir Kahane . The PLO pointed the finger at Mossad , which is now known to have organized his killing . At the time , Ehud Gol , spokesman for the Israeli Prime Minister Yitzhak Shamir , stated that claims of Israel 's responsibility were " completely ridiculous " and did not merit a reply . Some Israeli authorities suggested it was the work of a rival Palestinian faction . General Uri Sagi , head of Israel 's military intelligence claimed that Bseiso had been involved in both the 1972 Munich Olympics massacre , a failed attempt on the life of the Jordanian ambassador to London , and an abortive attack on an El Al plane in 1978 , adding he did not know who was responsible
1972 Munich Olympics massacre
Munich massacre
Atef Bseiso