The city of Chicago led the nation when it came to gangland violence during the Prohibition era. As a result, many infamous, unforgettable personalities became a part of America"s criminal history. "Chicago Assassin" is the story of "Machine Gun" Jack McGurn, one of the people responsible for putting much of the roar into the Roaring Twenties. McGurn was born in Liscata, Sicily, on February 15, 1905, as Vincenzo Antonio Gibaldi. His family immigrated to Chicago in 1906, and he grew up in the city"s slums and later took up boxing as "Battling" Jack McGurn. Known to have been a well-mannered, law-abiding young man, he changed dramatically when his father was assassinated by members of the White Hand Gang in a case of mistaken identity. After he avenged his father"s death by killing the three hit men responsible, he came to the attention of Al Capone, who invited him into his organization, known as the Chicago Outfit. There he rose to power and was one of the most feared...