Born in Stone Park, Illinois, Pranno's criminal record stretched back to 1934 and included charges of armed robbery, extortion, murder and bombing. Pranno served one year in prison for assault and battery, at the Joliet Prison, in Joliet, Illinois. He was later convicted of conspiracy and extortion and sentenced to 15-years imprisonment in Leavenworth Federal Penitentiary, in Leavenworth, Kansas.
The pace of development then picked up, with more than half of the area's housing stock constructed during the 1950s. Its size and poverty also made Stone Park vulnerable to organized crime, for which it became notorious. Local lore suggests that Al Capone ran a brewery here during Prohibition, while the hometown boy and gangland criminal Rocco Pranno made Stone Park his base in the 1960s. For a time Pranno's brother controlled all political offices in the town, while Pranno himself ran a crime syndicate from his office table at the Club D'Or on North Mannheim Road. Since the 1960s, Stone Park has transcended its gangland image.
- Kennedy, Robert F. The Enemy Within: The McClellan Committee's Crusade Against Jimmy Hoffa and Corrupt Labour Unions. New York: Da Capo Press, 1994. ISBN 0-306-80590-1