Participants in organized crime in Chicago at various times have included members of the Chicago Outfit associated with Al Capone, the Valley Gang, the North Side Gang, Prohibition gangsters, and others. Chicago Outfit (Al Capone Gang) (Formerly called the "Capone Gang".) Jim Colosimo, founder Johnny Torrio, foundational leader of American organized crime Al Capone, heir of American organized crime Frank Nitti Paul Ricca Tony Accardo Valley Gang Paddy Ryan Terry Druggan Frankie Lake Genna Crime Family Angelo Genna Mike Genna Pete Genna Jim Genna Sam Genna Tony Genna North Side Gang Dion O'Banion Hymie Weiss Vincent Drucci George Moran Chicago gang leaders Joey Aiello (Unione Siciliana takeover) Sam Cardinelli ("Black Hand" gang) Prohibition gangs Roger Touhy (Des Plaines, Illinois) Ragen's Colts, founded as a baseball team by James M. Ragen on the South Side Southside O'Donnell's Westside O'Donnells, led by Myles O'Donnell and William O'Donnell Frank McErlane-Joe Saltis Gang Racketeers Maurice Enright, Chicago labor racketeer References Organized crime in Chicago