why a hoax? the DS dosen't care about the loss of life. I doubt that a video streamed through the compression of live-stream can be forensically analyzed like one would if looking at 70mm. Do you know what the original pixel and i-frame settings were? Back to why a hoax, all the gun grabbing and censorship dosen't require a hoax. Why fake the deaths of 50 people? It's easy to disappear if no one is looking for you, is the only thing that would require a hoax. Now is there any one, or more of the victims, that fit this possibility?
But you don't need a hoax to accomplish that.