One of the most notorious Nazis still sought by Holocaust investigators actually died in 1992 in his adopted city of Cairo, the New York Times reports. Aribert Heim was known as Dr. Death for his sadistic medical procedures at the Mauthausen concentration camp. Heim narrowly evaded capture in 1962 before fleeing to Egpyt, converting to Islam, and changing his name to Tarek Hussein Farid.
Among his atrocities, the Times notes: Heim performed operations at the camp without anesthesia, removed organs from healthy prisoners and left them to die on the operating table, and injected poison into the hearts of others. His son said he died of rectal cancer in 1992. It's unclear how he managed to elude authorities for so long, though his late sister regularly sent him money from Europe.