A grim 13-minute-long video has now been released, showing a young man who appears to be Muhammad Musallam, kneeling in an orange jump suit, facing the camera in an empty field. ___________________________________ 在公布的13分钟残忍视频中,显示年轻人就是穆罕默德?穆萨拉姆.他身穿橙色连身裤,面朝相机跪在一片空地上.___________________________________