Dr. Josef Mengele, who worked in Auschwitz. His experiments included placing subjects in pressure chambers, testing drugs on them, freezing them, attempting to change eye color by injecting chemicals into children's eyes, and various amputations and other surgeries.

Josef Mengele

Officer and physician in Auschwitz concentration camp during World War II. He was notorious for the selection of victims to be killed in the gas chambers and for performing unscientific and often deadly human experiments on prisoners these are some of the main reasons he was called the angel of death.. After the war, he fled to South America, where he evaded capture for the rest of his life.