

While incarcerated he wrote short stories, poems, plays, and an autobiography, Purgatory or The Trip to Prison – Report of a Guilty Man, that later served as the basis for a documentary. In 1974, Unterweger murdered 18-year-old West German national Margaret Schäfer by strangling her with her own bra, for which he was convicted and sentenced to life in prison in 1976. First murder conviction, imprisonment and release He worked as a waiter but between 19 he was convicted sixteen times, mostly for theft-related offences, but also for pimping and sexual assault on a sex worker he spent most of those eight years in jail. Unterweger was in and out of prison for much of his youth. After his mother was arrested again in 1953, Unterweger was sent to Carinthia to live with his grandfather, who was known as a "rough fellow" who regularly used his grandson to help him steal farm animals. Unterweger's mother was jailed for fraud while pregnant but was released and travelled to Graz, where he was born.

Some sources describe his mother as a sex worker. Jack Unterweger was born August 16, 1950, in Judenburg, Styria, Austria, to Theresia Unterweger, a Viennese barmaid and waitress, and Jack Becker, an American soldier whom she had met in Trieste, Italy. Unterweger hanged himself in prison after being convicted of nine more murders in June 1994.

Upon his release, he became a minor celebrity and worked as a playwright and journalist, but within months he resumed killing women. His work gained the attention of the Austrian literary elite, who took it as evidence that he had been rehabilitated.Īfter significant lobbying, Unterweger was released on parole in 1990. Initially convicted in 1974 of a single murder, Unterweger began to write extensively while in prison.

Johann " Jack" Unterweger (16 August 1950 – 29 June 1994) was an Austrian serial killer who committed murder in several countries – Austria, West Germany, Czechoslovakia, and the United States.
