South Korea's top military officer has been accused of being absent from the defense ministry's main command and control center on the night of North Korea's torpedo attack on a South Korean warship in the Yellow Sea, state auditors disclosed Friday. Gen. Lee Sang-eui, chairman of the Joint Chiefs of Staff (JCS), is also suspected of having manipulated an internal document to pretend that he was present at the command and control center throughout the night on March 26, when the warship Cheonan sank, killing 46 sailors, officials at the Board of Audit and Inspection (BAI) said.