Al Capone and threatened to arrest his family. He was charged with perjury for making these statements, but was acquitted after a three-day trial in July. In September, a Chicago judge issued a warrant for Capone's arrest on charges of vagrancy, and then used the publicity to run against Thompson in the Republican primary. In February 1931, Capone was tried on the contempt of court charge. In court, Judge James Herbert Wilkerson intervened to reinforce questioning of Capone's doctor by the prosecutor. Wilkerson sentenced Capone to six months, but he remained free while on appeal of the contempt conviction. Assistant Attorney General
Antonio Lombardo the four-year gang war, suggesting that Capone surrender supposed Dean O'Banion assassins Albert Anselmi and John Scalise, which Capone refused. Lombardo, with the help of Capone, later became President of the Unione Siciliana in November 1925, attempting to regain control of the unstable organization as well as instituting reforms, including opening membership to non-Sicilian Italian immigrants (such as the Neapolitan Capone) and changing the organization's name to the Italo-American National Union. Lombardo's reforms, however, caused some resentment within Unione Siciliana members. With the partnership of Al Capone and New York gangster Frankie Yale worsening, possibly due to the end of