Initially, Mafia member and future boxing promoter Frankie Carbo of the Lucchese crime family was charged with Duffy's murder, but was not prosecuted after furnishing an alibi, due to a lack of evidence.Mitchell, Kevin Jacobs Beach: The Mob, the Fights, the Fifties, Open Road Media, USA, 2012, page 102. Retrieved July 19, 2018. Anderson, A. M., et al Philadelphia Organized Crime in the 1920s and 1930s, by Anne Margaret Anderson with John J. Binder, Arcadia Publishing, USA 2014, page 47. Retrieved July 19, 2018.
