Aribert Ferdinand Heim (28 June 1914 – 10 August 1992) was an Austrian Schutzstaffel (SS) doctor, also known as Dr. Death and the Butcher of Mauthausen. During World War II, he served at the Mauthausen-Gusen concentration camp in Mauthausen, Upper Austria, Austria, killing and torturing inmates by various methods, such as direct injections of toxic compounds into the hearts of his victims.
After the war, Heim lived for many years in Cairo, Egypt, under the alias of Tarek Farid Hussein after his conversion to Islam, and died there on 10 August 1992, according to the testimony by his son and lawyer. This information, though set forth by a German court, has been challenged.
In 2009, a BBC documentary stated that German police had found no evidence of Heim's death on their recent visit to Cairo; nevertheless, three years later, a court in Baden-Baden confirmed again that Heim had died in 1992, based on new evidence provided by his family and lawyer.