Sammy the Bull Gravano: Sons of X-stacy Al Profit Mafia Documentary

A longtime member and eventual underboss of the Gambino crime family, Mr. Gravano murdered at least 19 men, by his own admission. In the early 1990's, he helped the government bring down 39 mobsters, including his former boss, John J. Gotti. Mr. Gravano was rewarded with a relatively brief sentence (five years -- about three months for each murder) and a slot in the witness protection program. He soon left the program, relocated to Tempe, Ariz., and began installing swimming pools under the name Jimmy Moran.