The long version, almost 10 minutes, has the screaming while the camera shows him still looking at the camera, and the shouts of Allhu Akbar begin, but Berg is NOT the one screaming. He just sits there motionless. Sitting upright.
What is added in the long version? Why is it longer?
FWIW, if you have done any video encoding, one of the really annoying things is sometimes the video and audio get out of synch, with the audio usually lagging. I've had this happen many many times. That could easily be the explination of the problem with that video. Some of the other points, such as an apparent lack of arterial bleeding from the cuts are harder to explain.