The document provides background information on Josef Mengele, known as the "Angel of Death" for his human experimentation at Auschwitz. It details his early life and education in Germany, joining the Nazi party and becoming involved in the study of eugenics. It describes how he became a doctor and was assigned to Auschwitz in 1943, where he conducted horrific medical experiments on prisoners, especially twins and those with physical abnormalities, without anesthesia, which often led to death. After the war, Mengele fled Europe and lived in hiding in Argentina until his death by drowning in 1979 while evading capture.