Which American gangster was known as "The Fox"?

Johnny Torrio (born Donato Torrio, January 20, 1882 – April 16, 1957) was an Italian-born American mobster who helped to build a criminal organization, the Chicago Outfit, in the 1920s; it was later inherited by his protégé, Al Capone. He also put forth the idea of the National Crime Syndicate in the 1930s and later became an unofficial adviser to the Genovese crime family.

He gained several nicknames but was mostly known as "The Fox" for his cunning and finesse. Widely considered one of the most influential personalities in American organized crime, Torrio impressed authorities and chroniclers with his business acumen and diplomatic skills.

The US Treasury official Elmer Irey considered him "the biggest gangster in America" and wrote, "He was the smartest and, I dare say, the best of all the hoodlums. 'Best' referring to talent, not morals." Virgil W. Peterson of the Chicago Crime Commission stated that his "talents as an organizational genius were widely respected by the major gang bosses in the New York City area." Crime journalist Herbert Asbury affirmed: "As an organizer and administrator of underworld affairs Johnny Torrio is unsurpassed in the annals of American crime; he was probably the nearest thing to a real master mind that this country has yet produced".