 The violent retaliation against Aiello indirectly led him to finally become head of the Unione . During a conference in Atlantic City , numerous mob bosses supported Aiello 's promotion with the hopes of restoring order in Chicago , and Capone apparently accepted the decision , at least temporarily . Retired Chicago mob boss Johnny Torrio was said to have mediated a peace agreement among Capone , Aiello and Moran , in which they agreed to end the gang warfare and murders . However , Aiello 's accession coincided with Capone serving a year in prison for carrying a concealed weapon , which Aiello saw as an opportunity to take control of some of Capone 's territory and scheme yet again for his assassination . Aiello gained a measure of nationwide notoriety around this time after ranking seventh on Chicago Crime Commission Chairman Frank J. Loesch 's " public enemies " list , released in April 1930 , which identified the top 28 people he saw as corrupting Chicago . 
