Eliot Ness (April 19, 1903 – May 16, 1957) was an American Prohibition agent, famous for his efforts to bring down Al Capone and enforce Prohibition in Chicago, Illinois, and the leader of a famous team of law enforcement agents from Chicago, nicknamed The Untouchables. His co-authorship of a popular autobiography, The Untouchables, which was released shortly after his death, launched several television and motion picture portrayals that established Ness's posthumous fame as an incorruptible crime fighter.