A/HRC/23/58 11 50. Reasonable grounds exist to believe that the war crime of murder was committed in two massacres perpetrated by government forces and affiliated militia, and one perpetrated by anti-government armed groups. The killing in Baniyas and Sanamayn match the pattern of widespread attacks on a civilian population by the Government and may therefore amount to murder as a crime against humanity. In incidents that remain under investigation, the fact of the killing was confirmed. However, neither the perpetrator nor the circumstances could be determined. B. Other unlawful killing 1. Summary executions and the war crime of murder 51. Patterns of summary executions and murder have emerged. Detained persons believed to be opposition sy...