Bugsy Siegel was a notorious American mobster and crime boss instrumental in the development of Las Vegas as a gambling and entertainment destination.
Nicky Barnes was a notorious New York City drug lord in the 1970s, whose lavish lifestyle and criminal empire made him a symbol of the era's excess and corruption.
Mickey Cohen was a notorious American mobster, known for his violent criminal activities and connections to the Los Angeles underworld during the 1950s.
Whitey Bulger was a notorious Irish-American mobster who led the Winter Hill Gang and evaded capture for decades.
Frank Nitti was a notorious American mobster, enforcer and eventual boss of the Chicago Outfit, infamous for his criminal activities and connections to Al Capone.
Richard "The Iceman" Kuklinski was a notorious American contract killer, known for his brutal methods and numerous victims.
Alexander Solonik was a notorious Russian contract killer, dubbed "The Superkiller," known for his ruthless tactics and high-profile hits.