Jack the Hat, was known for triggering the imprisonment and downfall of the Kray twins. He had acted as an enforcer and hitman with links to the Krays' gang, The Firm, and was murdered by Reggie Kray in 1967.
Kray was arrested the following year for the murder, being found guilty and received life imprisonment at his trial in March 1969. He remained in prison until just before his death, which was in 2000. Ronnie Kray was imprisoned for life at the same time for the murder of George Cornell in 1966 and remained behind bars until he died of a heart attack in 1995.
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