NEW : ` ` His negligence and conduct '' threatened national security , Bakr said . Attorney says he provided evidence to court about sniper presence on rooftops . Attorney says Mubarak is ` ` directly responsible '' for this . The former Egyptian president denies the charges against him .
NEW : `` His negligence and actions '' endangered national security , Bakr says . Lawyer says he provided evidence to court about sniper presence on rooftops . Attorney says Mubarak is `` directly responsible '' for killings . The former Egyptian president denies the charges against him .