Shirō Ishii

Shirō Ishii was the head of Japan's Unit 731 during World War 2. His unit conducted physiological human experiments such as vivisections, forced abortions, and simulated strokes, heart attacks, frostbite, and hypothermia. Ishii and his team managed to negotiate with the USA and receive immunity in 1946 from war-crimes prosecution in exchange for their full disclosure of germ warfare data based on human experimentation.