Frank Ralph Nitto, known as Frank Nitti, was an Italian-American organized crime figure based in Chicago. 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.

Anton Joseph Cermak was an American politician who served as the 44th mayor of Chicago, Illinois, from April 7, 1931, until his assassination in 1933. He was killed by an assassin, whose likely target was President Franklin D. Roosevelt, but Cermak was shot instead after a bystander hit the perpetrator with a purse.