The document summarizes John Gotti, who became the boss of the Gambino crime family in 1985. As boss, Gotti engaged in illegal activities like racketeering, hijacking trucks, heroin dealing, and extortion to generate large sums of money. However, Gotti's flaunting of criminal activity and failure to properly cover his tracks led to his downfall, as he was convicted of numerous charges including murder and sentenced to life in prison, where he died.