I believe your analysis is incorrect, and the timestamps are explained by two cameras and some sloppy editing, but that the events took place in real time. See http://www.truth-teller.com/000041.html for an analysis of the timestamps. Also, although the video is poor quality, I believe can see bloodstains spreading over the clothes on Berg's shoulders as he is cut. I can see wetness on the knife without any doubt, and redness appears to be pooling on the floor in a spreading puddle. If you watch closely you can see dripping from the head when it is held up. This is very gory to view or discuss, but I believe the video presents everything in real time and can be taken at face value.
Well i dont wish any one to look at the video of the russian but there is a big descrepancy in the ways the blood comes out...I am sorry this is just sick!
Yes, there is some blood. But not the amount of blood that comes from a living body with a beating heart.
P.S. But I appreciate your analysis and it made me realize that two cameras WERE used with gaps in the editing for some unknown purpose.
P.P.S. Do you think that White Hood finished the job after Black Hood couldn't manage to cut between the bones of the spinal column?