most famous gangsters of all time
14 of the most ruthless gangsters in U.S. history â. Al Capone: One of the most infamous mobsters in U.S. history, Capone rose to power as a Chicago Mafia leader during the Prohibition-era. In 1931, Capone was convicted on tax evasions charges and sentenced to 11 years in federal prison. He was released from custody in 1939. Capone died of a stroke and pneumonia in January of 1947.