Heinz Nittel (1931–1981), a leader of the Austrian Socialist party and the president of the Austrian-Israeli Friendship League, was shot to death on 1 May 1981 outside his home in Vienna by Hesham Mohammed Rajeh, 21, born in Iraq. Rajeh was also indicted for the 1981 Vienna synagogue attack.
- Assassinations and executions: an encyclopedia of political violence, 1865-1986, Harris M. Lentz, McFarland, 1988p. 214
- Palestinians Get Life In Austrian Slayings, New York Times, January 22, 1982, https://query.nytimes.com/gst/fullpage.html?res=9804E1DD1E38F931A15752C0A964948260