Al Capone target him. His driver was found tortured and murdered, and there was an attempt on Weiss's life in the Chicago Loop. On September 20, 1926, the North Side Gang used a ploy outside the Capone headquarters at the Hawthorne Inn, aimed at drawing him to the windows. Gunmen in several cars then opened fire with Thompson submachine guns and shotguns at the windows of the first-floor restaurant. Capone was unhurt and called for a truce, but the negotiations fell through. Three weeks later, Weiss was killed outside the former O'Banion flower shop North Side headquarters. The owner of Hawthorne's restaurant
Al Capone (film) 1919: A young Al Capone arrives to work for mob boss Johnny Torrio. He meets Torrio's top man, "Big Jim" Colosimo, who runs business and politics in the First Ward while secretly on Torrio's payroll. Prohibition is enacted a year later, causing Torrio and other gangsters like Dean O'Banion, George "Bugs" Moran and Earl "Hymie" Weiss to compete for profits in bootleg liquor and beer. Torrio's rivals conspire to have Colosimo and his henchmen killed. A reform mayor is elected, so Torrio and Capone change their base of operations to Cicero, a few miles away. Capone also has O'Banion killed