August 4, 1920 - Dan Mitrione

Daniel Anthony Mitrione (August 4, 1920 – August 10, 1970) was a U.S. government official in Latin America, where he taught torture techniques to local authoritarian regimes.

A Cuban who claimed to have infiltrated the CIA said Mitrione would use homeless people as guinea pigs for torture methods, and had personally tortured four homeless people to death during a training session that he witnessed.

Content sourced from en.wikipedia.org/wiki/Dan Mitrione under CC BY-SA 4.0.