See Also – https://www.youtube.com/watch?v=dk81aTotvDc –
Film – Prosecuting Evil: 1 Hour 22 min – The Extraordinary world of Ben Ferencz – rent or purchase, Netflix has it.

Ben Ferencz From Wikipedia: Benjamin Berell Ferencz (born March 11, 1920) is an American lawyer and pacifist. He was an investigator of Nazi war crimes after World War II and the chief prosecutor for the United States Army at the Einsatzgruppen Trial, one of the 12 military trials held by the U.S. authorities at Nuremberg, Germany. Later, he became an advocate of the establishment of an international rule of law and of an International Criminal Court. From 1985 to 1996, he was adjunct professor of international law at Pace University.