Al Capone was the most notorious gangster of the 1920s, controlling organized crime in Chicago through bootlegging, murder, and racketeering. His main rival was Bugs Moran, whose crew was responsible for the bloody St. Valentine's Day Massacre. Minor gang members like the Genna Brothers engaged in extortion and bootlegging. Capone's gunmen included Jack McGurn, who planned the St. Valentine's Day Massacre, and Sam Giancana, a triggerman and bootlegger. Elliot Ness and his Untouchables were eventually able to arrest and convict Capone on tax evasion charges, sending him to prison for 11 years.