BONN (Jun. 29)
Prison authorities in Dusseldorf said today that an autopsy would be performed to determine the cause of death of Frank Stangl 65, a convicted Nazi war criminal, who was found dead in his cell yesterday. Stangl, a one-time Austrian policeman who was commandant of the Treblinka death camp in 1942-43, was sentenced to life imprisonment last Dec. for supervising the mass murder of at least 400,000 Jews. The cause of death was listed as a heart attack pending the autopsy report.