Infamous American crime czar Al "Scarface" Capone was once king of the Chicago rackets. A Prohibition-era gangster, he ruled a multimillion-dollar empire in the 1920s that was fueled by illegal booze, gambling and prostitution. Capone is also suspected of being the mastermind behind the 1929 Saint Valentine's Day Massacre in Lincoln Park that left seven of his enemies dead. Capone's reign as ruler of Chicago's gangland ended in 1931 when he pleaded guilty to tax evasion and prohibition charges. After serving seven years and six months in federal prison, which included a stay at Alcatraz, Capone was paroled on Nov. 16, 1939. By that time, however, he suffered from paresis derived from syphilis. Capone went into seclusion at an estate near Miami, Fla., where he died of a stroke and pneumonia on Jan. 25, 1947.