On December 8, five weeks after MF Global filed for bankruptcy, former MF Global chairman and CEO Jon Corzine came before the House Agriculture Committee to tell them he was "stunned" to discover on October 30 that there was a shortfall in MF Global customer-segregated funds. Corzine's testimony broke a long silence -- he resigned days after the filing -- but didn't offer many answers to the thousands of customers whose lives had been turned upside down five weeks prior. While stories citing unnamed sources claimed MF Global commingled customer funds with the firm's capital and a curt release by CME Group on November 2 hinted at the firm's wrongdoing, this was the first clear statement of it. It had for more than five weeks been an official mystery. Another revelation at the day's testimony was acknowledgement by the trustee of the rights of customers.