A top Syrian rebel leader and head of the most powerful insurgent group in the eastern suburbs of Damascus was killed in an aerial raid that targeted the group's headquarters, rebel sources and the Syrian army said on Friday. The death of Zahran Alloush, 44, head of Jaysh al Islam, is a big blow to rebel control of the rural eastern suburban area of Damascus known as al Ghouta, the rebels said. Defence experts say the disarray among the rebel forces could also consolidate Syrian President Bashar al-Assad's control over the rest of the area. Several rebel leaders have been killed ...