HOw could someone even think it looked real? I saw it and it was obvious it was fake. He was talking in the beginning of it, and he's like "everyone is going to be killed this way". Yeah, like he'd know what was going to happen. They dont usually tell you beforehand if they are gonna behead you, shoot you in your head, or whatever.
I've seen all the videos released so far. The latest one of the Turkish guy being held, well they just put a pistol to his head and pulled the trigger. No beheading.