Aribert Heim, Austrian SS physician and Nazi war criminal (died 1992)

Aribert Ferdinand Heim, also known as Dr. Death and Butcher of Mauthausen, was an Austrian Schutzstaffel (SS) doctor. During World War II, he served at the Mauthausen-Gusen concentration camp in Mauthausen, killing and torturing inmates using various methods, such as the direct injection of toxic compounds into the hearts of his victims.

The Schutzstaffel was a major paramilitary organisation under Adolf Hitler and the Nazi Party in Nazi Germany, and later throughout German-occupied Europe during World War II.