Sports in Chicago By Anthony Gonzalez Period: Jan 1, 1918 to Dec 31, 1930 Organized Crime in Chicago Jan 1, 1920 Thompson submachine gun becomes weapon of choice Jan 29, 1920 prohibition comes into effect May 12, 1920 Big Jim Colosimo is Shot and Killed Jan 1, 1925 Johnny Torrio retires making Al Capone crime czar of Chicago Feb 14, 1927 Saint Valentines Day Massacre valentines day massacre Oct 23, 1930 Joe Aiello is shot and killed while trying to flee ro Mexico by Al Capone's men Mar 1, 1931 Al Capone gets sentenced to 11 years in alcatraz island
