Frank Capone (July 16, 1895 – April 1, 1924) was a Chicago mobster who participated in the attempted takeover of Cicero, Illinois by his brother Al Capone's criminal organization. He had another brother, Ralph Capone, who worked in their businesses with Al and him.
Born Salvatore Capone, Frank was the son of Gabriele Capone (1865-1920), an Italian immigrant who settled with his wife Teresa Raiola (1867-1952) in New York City in 1894. Besides Al, Frank had another brother who became a mobster, Ralph Capone. Growing up in New York, both Frank and Al became involved in the Five Points Gang with mobster John Torrio. By 1918, Torrio had moved to Chicago to help a relative defend his rackets, and Torrio soon asked Al and later Frank to join him there.
By 1920, Torrio had taken charge of the South Side Gang and the Prohibition era had started. As the gang increased in power and wealth, so did Al and Frank.
In 1923, Chicago voters elected a new mayor, William Dever, who proceeded to crack down on Torrio, the Capone brothers, and their South Side Gang. In response, Torrio tasked Al with creating speakeasies, brothels, and illegal gambling dens in Cicero, a Chicago suburb. Within a year, Capone had placed the Cicero city manager Joseph Z. Klenha and the town committeemen on the gang payroll. Frank Capone's job was to represent the gang in its dealings with the Cicero town council. Frank was mild mannered compared to his brother Al, projecting the image of a respectable businessman, always attired in a neat suit.
In the April 1, 1924, primary election, Democratic Party politicians mounted a serious election challenge to Republican Klenha and his associates. To protect the gang's political control of Cicero, Frank unleashed a wave of terror on the city. He sent South Side gang members to the polling booths with submachine guns and sawed-off shotguns to make sure that local residents "voted right." Uncooperative voters were assaulted and blocked from voting. Frank led an attack on an opponent's campaign headquarters, ransacking his office and assaulting several campaign workers. One campaign worker was shot in both legs and detained with eight other campaign workers, to be released when Election Day was over.