Johann "Jack" Unterweger (16 August 1950 – 29 June 1994) was an Austrian serial killer who committed at least twelve murders in Austria, West Germany, Czechoslovakia and the United States. Initially convicted in 1976 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 at least twelve murders in Austria, West Germany, Czechoslovakia and the United States. Initially convicted in 1976 of a single murder, Unterweger began to write extensively while in prison.
Source: Wikipedia "Jack Unterweger" · CC BY-SA 4.0
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