An Egyptian officer in charge of the Muslim Brotherhood file has been gunned down outside his home in a Cairo suburb. Security sources say the slain official had been involved in drafting the charges against ousted President Mohamed Morsi and Brotherhood chief Mohammed Badie which led to trials for both of them. Prime Minister Hazem al-Belawi has condemned Mohamed Mabruk\'s assassination at quote treacherous hands. No group has claimed responsibility for Sunday\'s attack yet. Show Less >>