John Joseph Gotti, Jr. (October 27, 1940 – June 10, 2002) was the boss of the Gambino crime family after the murder of the previous boss Paul Castellano. John Gotti was the most powerful crime boss during his era. He became widely known for his outspoken personality and flamboyant style that eventually caused his downfall.
He was known by the media as the "The Dapper Don" because he wore expensive clothes and "The Teflon Don" because the majority of attempts to convict him resulted in either a hung jury or an acquittal - thus no criminal charge would "stick to him".
In 1992, Gotti was convicted of racketeering, 13 murders, obstruction of justice, conspiracy to commit murder, illegal gambling, extortion, tax evasion, and loansharking, and was sentenced to life in prison where he died 10 years later of cancer.