TRIPOLI, Libya A Libyan security official says gunmen have killed the head of the regional military police in the eastern city of Benghazi. The official told The Associated Press that masked gunmen fired from a car at Col. Ahmed Mostafa el-Barghathy at his house in Benghazi as he was heading to the mosque to attend Friday prayers. The official says El-Barghathy suffered chest and head injuries in the attack. He spoke on condition of anonymity because he was not authorized to give information to the media. El-Barghathy served in the Libyan army during the reign of the deposed leader Muammar...