Here's a correction OP for 50 Reasons, 50 Years OP

[William Seger]

38. "Sorry. That does not add up."

We were discussing that video in another thread and it seems there are at least two possible explanations for people running up the hill.

(1) They figured the murderer couldn't shoot all of them, so whoever made it up there when he ran out of ammo would grab him.

(2) They were trying to leave and they parked in the parking lot behind the picket fence.

As fascinating as your arithmetic is, I think I'll go with (2), but the point is that the inference that video tries to make is completely invalid.

The Warren Commission and the HSCA and everyone else who has reviewed the "ear witnesses" objectively has concluded that more people said the shots came from the direction of the TSBD than from the knoll. You dodged every point in my reply, but the important one was that you can't prove there was a shooter on the knoll with those perceptions.

> (By the way, forensic crime scene investigator Sherry Fiester has written clearly and scientifically on why the Zapruder film shows a shot from the front.)

When asked specifically about the forward head-snap seen in Zapruder, this is what Fiester offered as an explanation:

When the bullet strikes the skull, the velocity abruptly slows, thereby transferring kinetic energy to the target. This primary transfer of energy causes the target to move minutely into the force and against the line of fire, quickly followed by movement with the force, and in the continued direction, of the moving bullet (Karger, 2008). This dual movement is addressed in several studies, all of which include that dual movement as a part of the characteristic of gunshot wounds to the head.

Once the bullet enters the skull, if the design of the projectile limits penetration by distortion or fragmentation, the bullet immediately loses velocity. The loss of velocity results in the transfer of kinetic energy demonstrated by the instantaneous generation of temporary cavitation. The higher a projectile’s velocity upon impact, the more kinetic energy is available to transfer to the target. The amount of kinetic energy transferred to a target increases with faster projectile deceleration. This initial transfer of energy causes the target to swell or move minutely into the force and against the line of fire. The greater the transferred energy, the more pronounced the forward movement (Karger, 2008; Coupland, 2011; Radford, 2009).

http://jfkhistory.com/forum/index.php?topic=2240.120

She goes on to provide some high-frame-rate videos of bullets passing through gelatin blocks to demonstrate that while the bullet is still inside the gelatin, the side where the bullet entered bulges slightly as pressure builds up.

Sorry, but we're not talking about JFK's head bulging slightly while the bullet was passing through it, but rather the 2.5-inch forward movement of the entire skull after the bullet has already passed through it. Fiester has certainly not explained that movement because she hasn't even addressed it. Moreover, she does not even begin to address how the back-and-to-left movement could have been caused by momentum from a bullet that passed through the skull 1/6 second before that motion is observed.

The Zapruder film irrefutably shows that the fatal shot was from behind, but please feel free to attempt another refutation.