James "Whitey" Bulger reigned supreme in Boston's underworld for more than 20 years. His rise to power, as part of South Boston's Irish-American Winter Hill gang, was due in part to a remarkable relationship with the FBI.
Murder, Inc. was a ruthless gang that carried out mob hits during the 1930s. As the enforcement arm of The Syndicate, members of Murder, Inc. killed an estimated 1,000 people from coast to coast.
Underboss and boss of the Lucchese crime family, Tommy Lucchese pioneered and perfected labor rackets in New York City's kosher chicken industry, the garment district, and the world of professional boxing, which generated millions of dollars.
"Big Paul" Castellano served as boss of the Gambino crime family--the largest in New York in the 1970s and '80s. From his $3.5 million dollar estate on Staten Island, he oversaw rackets in construction, meat distribution, union infiltration & pornography.
John Gotti, Jr. made a name for himself at a young age as the leader of the Fulton-Rockaway Boys, a group of young thugs in the South Bronx. After a violent coup, he takes the leadership position of the Gambino Crime family.