Jack is a 2015 Austrian thriller film about serial killer Jack Unterweger, was an Austrian serial killer who murdered prostitutes in several countries, and first convicted of a murder, in which year?
Jack (2015 film): Jack is a 2015 Austrian thriller film about serial killer Jack Unterweger, directed by Elisabeth Scharang. Jack Unterweger:  First convicted of a 1974 murder, he was released in 1990 as an example of rehabilitation.
1974