Thomas DeSimone was an associate of one of the "Five Families."
The Lucchese crime family ( pronounced [ lukˈkeːze ] ) is one of the `` Five Families '' that dominate organized crime activities in New York City , United States , within the nationwide criminal phenomenon known as the Mafia ( or Cosa Nostra ) . Thomas Anthony DeSimone ( May 24 , 1950 -- disappeared January 14 , 1979 ) , also known as Two-Gun Tommy or Tommy D , was a Sicilian-American gangster and associate of the Lucchese crime family in New York City .