You seem to think that a shot from behind negates any shots from the front.
That's not been said anywhere but I get the impression you're the kind of guy who likes to decide what other people are thinking.
You should be asking yourself how did the shot from behind cause "back and to the left"?
Erm...that's the exact question I ask at the end of my post.
Actually, JFK's body movements were a complex response to several forces applied from various directions.
I've got a feeling you're just about to make up something crazy because you don't actually have a clue what's happening.
You are seeing the "jet effect" in action, moving JFK's head away from "blowouts". But what is jetting from the blowouts? Plasma from an exploding bullet, of course. Did you think the glowing orb at JFK's temple was sun on brain matter? Even if it was, something blew out his right temple and it wasn't from a FMJ bullet shot from behind.
There are many examples of incredibly poor scholarship related to the JFK assassination case but the worst, by far, is Luis Alvarez's utterly discredited Jet Effect. It's an embarrassment to the word "scholarship". And here, if I'm reading you correctly, we don't have one, but multiple jet effects from multiple "blowouts". Let's see where this leads.
You make a point about FMJ bullets. I know zero about guns and ammunition but, as far as I can see, both the bullets that cause the wounds to JFK and JBC fragment. IMO CE399 has got absolutely nothing to do with the actual assassination. I believe there is evidence the bullet that strikes JFK's head fragments and causes the damage to the windscreen and metal trim of the limo.
I believe you put some kind of image here but it didn't show up in my post
That's where the frangible bullet entered, then blew out a skull flap at his right temple, jetting his head to the left. IMO, it also jetted his head slightly forward from the blowout in the back, which was quickly swamped by the forces from the frontal shot moving his head back. The frangible bullet's jet effect gave us JFK's complex head motion and your slight forward motion.
So let me get this right.
You seem to acknowledge that JFK's first head movement is forward and this is the main thrust of my post - how can a shot from the front cause this forward motion? And your explanation appears to be that the shot from the front cause a blowout at the back of JFK's head and the jet effect from this blowout at the back caused the initial movement forward. Please correct me if I'm wrong on this.
So the bullet penetrates JFK's skull from the front first, then causes the blowout at the back second.
So the bullet from the front doesn't cause JFK's head to move backwards but the jet effect from the blowout at the back causes his head to move forward? That's your explanation?
At any rate, it does not prove that there wasn't a small caliber shot from behind in the mix, just that it wouldn't negate any other near simultaneous shots from the front.
Small caliber?
So what was your point again?
You've exemplified the point I'm making beautifully.
By not understanding what's actually happening with JFK's headshot you've had to make up some completely nonsensical scenario which defies physics, logic and common sense.
The bullet from the front doesn't cause JFK's head to move but the jet effect from the back does!!
Have a think about that. Have a think how unlikely that proposal is.
The jet effect? You must be joking.
Multiple jet effects?? Really?
Where is the blowout at the back shown in the Z-film?
It's not.
Oh, that's right, "they" altered the Z-film to hide the blowout at the back but left in the "back and to the left" motion. The motion that appears, above anything to confirm there is a shot from the front.
Why would "they" alter the blowout but leave in the "back and to the left" motion?
Have a think about that.