Born in Sicily on November 23, 1891, Antonio Lombardo immigrated to the United States in the early 20th century where he became a successful wholesale grocery business owner in Chicago, Illinois. A long time Mafia associate, Lombardo became Al Capone's advisor after John Torrio retired in 1925. Only one gunman was identified in Lombardo's death: a Frank Marco aka Marlo who was killed in New York City February 17, 1931; a possible unknown accomplice to Marco was killed September 9, 1928 in Michigan. Another suspect was Pietro La Mantia.