Former SS officers on trial for mass murder in Munich, 20th January 1970. The men were members of 'Einsatzgruppen', or mobile death squads tasked with the killing of Jews and communists behind the front line in Nazi-occupied eastern Europe during World War II. Left to right: Leo von der Recke, Georg Mohlmeyer, Karl Heinrich Noa and Paul Zapp. Zapp was later sentenced to life imprisonment for the murder of 13, 000 Jews in Russia. Von der Recke and Noa were sentenced to 13 and 7 years respectively, for complicity in the murders. (Photo by Keystone/Hulton Archive/Getty Images)