Liberal Party standard-bearer Mar Roxas on Thursday proved the existence of the Bank of the Philippine Islands (BPI) account of Davao City Mayor Rodrigo Duterte, which he earlier denied owning, calling it a mere "fabrication" of Senator Antonio Trillanes IV. VIDEO BY DOMINGO MORCOSO III/INQUIRER.net<br /><br />Visit us at http://www.inquirer.net<br />Facebook: http://facebook.com/inquirerdotnet<br />Twitter: http://twitter.com/inquirerdotnet