Current speculation is that it was a group of armed men recruited by the opposing political clan that included local police, private mercenaries, and assorted fighters recruited from local insurrectionists. It's certainly difficult to differentiate between specific groups and their motivations considering the widespread arms proliferation and frequent regional disputes. The image is a placeholder, a sort of revelant decoration, so the caption should be phrased as loosely as possible. If, as it appears, there is a growing consensus to remove it, then I have no serious objections to doing so. ˉˉ╦╩