The German Doctor, known as Josef Mengele, was a physician during World War II who infamously worked at the Auschwitz concentration camp. He is often referred to as the "Angel of Death" due to his cruel experiments on prisoners, particularly twins. Mengele's actions were part of the broader atrocities committed during the Holocaust, where millions of Jews and other marginalized groups were systematically murdered. After the war, Mengele evaded capture and fled to South America, living in countries like Argentina and Brazil. He continued to evade justice for decades, and his life became a subject of intrigue and investigation. Mengele's legacy remains a chilling reminder of the ethical violations in medical research and the horrors of the Holocaust.