Bullsh!t with a capital B. YOU post the previous frames. Kennedy’s head moved 2.3 inches from one frame to the next. That’s moving 2.3 inches to the front in one eighth of a second.
Do your math.
You are the one posting misleading clips, not I. I’ll let you “prove” your fantasy by posting more my friend. Just watch the film, concentrate on the big picture. It’s like someone swung a baseball bat and hit the President in the face. As I said before, a VIOLENT movement to the left rear. He collapses on Jackie to his left rear. She climbs onto the left rear of the limo to retrieve a piece of his brain/skull. She didn’t reach down to the floorboard in front of him, or off the back of Connelly’s coat to retrieve this, she climbed onto the REAR LEFT of the limo. Apply the physics.........