FILE - In this July 18, 2009 file photo, then Rome Mayor Gianni Alemanno attends the opening ceremony of the 2009 FINA Swimming World Championships, in Rome. Italian Police have searched Alemanno's house in Rome on Tuesday, Dec. 2, 2014, during a major anti-Mafia investigation that led to the arrest of 37 people. (AP Photo/Alessandra Tarantino, file)