23 Medical Professionals Who Were Actually Murderers

Josef Mengele

Josef Mengele was the head doctor at the Nazis' Auschwitz concentration camp. He would help decide which prisoners were gassed and would perform horrifying experiments (including injections to the eye to change its color, limb amputation, and worse) on other prisoners, many of whom he ended up killing for the purposes of his research. After the Holocaust, he escaped to South America, where he lived out the rest of his days before drowning to death after suffering a stroke while swimming at the age of 67 in 1979.