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

[William Seger]

143. What's refuted is your bizarre interpretation of "contemporary ballistic science"

You've shown us is that a gel block will "swell and move minutely into the force" for a couple of milliseconds because of the pressure wave going in all directions. You have not shown us a gel block jumping 2 inches back toward the gun. Not only have you failed to demonstrate that remarkable phenomenon, you apparently have no logical, physics-based explanation for it. Instead, you attempt to support your claim with an "appeal to authority" fallacy, which is bad enough, but then you apparently can't even show your "authority" actually saying what you claim.

On the other hand, the Discovery Channel video shows exactly what a rational person would expect when a bullet hits a head from behind, and you would have to call up all your extra reserves of willful blindness to not see the similarity to the Zapruder film.

And let's not forget that you still have no explanation whatsoever for why momentum from the bullet would wait 1/6 second before pushing the head back and to the left and then show acceleration for several frames. Nor will you ever be able to produce a rational explanation for that, because it's utter nonsense. Whatever caused that motion, it wasn't the bullet.

Beyond any doubt, the Zapruder film shows that JFK was shot from behind.