NEW : ` ` His negligence and actions '' endangered national security , Bakr says . The U.S. government has been investigating the case for more than a year but is not releasing any information about what it knows or how much evidence they have against him. Civil rights lawyers demanded the death penalty for former Egyptian President Hosni Mubarak on Monday , joining prosecutor 's calls for him to be executed . Attorney says Mubarak is `` directly responsible '' for killings . The former Egyptian president denies the charges against him .
NEW : `` His negligence and actions '' endangered national security , Bakr says . The U.S. government has been investigating the case for more than a year but is not releasing any information about what it knows or how much evidence they have against him. Attorney says Mubarak is `` directly responsible '' for killings . The former Egyptian president denies the charges against him .