Frank Nitti, the Chicago Outfit Boss after Al Capone, commits suicide at the Chicago Central Railyard.

Frank Ralph Nitto, known as Frank Nitti, was an Italian-American organized crime figure based in Chicago. The bodyguard of Al Capone, Nitti was in charge of all money flowing through the operation. Nitti later succeeded Capone as acting boss of the Chicago Outfit.

The Chicago Outfit, also known as the Outfit, the Chicago Mafia, the Chicago Mob, the Chicago crime family, the South Side Gang or the Organization, is an Italian American Mafia crime family based in Chicago, Illinois, and throughout the Greater Chicago area, originating in the city's South Side in the early 1910s.

Alphonse Gabriel Capone, sometimes known by the nickname "Scarface", was an American gangster and businessman who attained notoriety during the Prohibition era as the co-founder and boss of the Chicago Outfit from 1925 to 1931. His seven-year reign as a crime boss ended when he was imprisoned at the age of 33.