Born June 28, 1914 in Radkersburg, Austria, Heim joined the local Nazi party in 1935, three years before Austria was bloodlessly annexed by Germany.
He later joined the Waffen SS and was assigned to Mauthausen, a concentration camp near Linz, Austria, as a camp doctor in October and November 1941.
While there, witnesses told investigators, he worked closely with SS pharmacist Erich Wasicky on such gruesome experiments as injecting various solutions into Jewish prisoners' hearts to see which killed them the fastest.
In 1961, German authorities were alerted that Heim was living in Baden-Baden and began an investigation, but when they finally went to arrest him in September 1962, they just missed him — he apparently had been tipped off.
Heim would be 94 today if still alive.
