Owney "the Killer" Madden, once a member of The Gophers, went on to become a millionaire bootlegger in the 1920s and a powerful underworld force in boxing. Just as Madden prefigured the new gangster—the ruthless technocrat who made the dimwitted bruiser with his knuckledusters obsolete—he also set the blueprint for mob control of the fight game. No longer would boxing be a pastime for sporting mobsters looking for the occasional score to go along with celebrity cachet; now boxing would be a remunerative staple going forward. Madden laid the groundwork for Frankie Carbo, whose complete takeover of fighters was modeled on the pitiful case of Primo Carnera, a tragedy who wound up heavyweight champion of the world. https://hannibalboxing.com/the-duke-of-the-west-side-owney-the-killer-madden/