Frank Capone 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,
Al Capone (film) 1919: A young Al Capone arrives to work for mob boss Johnny Torrio. He meets Torrio's top man, "Big Jim" Colosimo, who runs business and politics in the First Ward while secretly on Torrio's payroll. Prohibition is enacted a year later, causing Torrio and other gangsters like Dean O'Banion, George "Bugs" Moran and Earl "Hymie" Weiss to compete for profits in bootleg liquor and beer. Torrio's rivals conspire to have Colosimo and his henchmen killed. A reform mayor is elected, so Torrio and Capone change their base of operations to Cicero, a few miles away. Capone also has O'Banion killed