 Aiello masterminded several unsuccessful attempts to assassinate Capone , and fought against his former business partner Antonio Lombardo , a Capone ally , for control of the Chicago branch of the Unione Siciliana benevolent society . Aiello and his ally Bugs Moran are believed to have arranged the murder of Lombardo , which directly led Capone to organize the St. Valentine 's Day Massacre in retaliation . 
