“Brian Sayers, director of government relations for the Syrian Support Group, a U.S.-based lobbying organization of FSA supporters, quoted sources in Syria as saying the attack was most likely carried out by an opposition sympathizer working in the Assad government.

That view was echoed by Fabrice Balanche, director of the French research center Gremmo and a Syria expert, who said “[The bombing] demonstrates complicity inside the Syrian government, and shows that [dissidents] are staying in government to destroy it from within.”