Back and to the right?

[Gary Craig]

Does that logic hold up though? Wasn't the limo almost stationary at the time of the head shot? Some witnesses thought the limo even stopped completely.

The Limo slowed down. Based on the film I've seen it didn't stop. IMO

[Gary Craig]

Yes, but the limousine was moving at a pretty steady speed of 8 mph, with only a little acceleration, a fraction of the acceleration that we see in JFK’s head, mild as it was. The movement (from Physics) inside a vehicle moving at a constant speed are the same as if the vehicle was stationary, relative to the vehicle.

"The movement (from Physics) inside a vehicle moving at a constant speed are the same as if the vehicle was stationary, relative to the vehicle."

Unless an outside force intercedes. JFK's brain changes speed at Z-313 when a bullet(s) goes through his skull.

That same bullet(s), from the front, impeded the forward motion of his head and upper torso.
Everything else in the vehicle kept moving forward for that split second.
The combination of the loss of momentum and force from the bullat creates the head snap. IMO

[Royell Storing]

 "Head SNAP"? There was No SNAP. There was a Head EXPLOSION.

[Bill Chapman]

 "Head SNAP"? There was No SNAP. There was a Head EXPLOSION.

A head snap preceded the explosion of the head

[Royell Storing]

A head snap preceded the explosion of the head

   What you guys are referring to as a "SNAP" is actually a very Minor "Tilt" or "Tipping" of JFK's Head.  A tree limb "SNAPS". Or, "You can "SNAP" Into a Slim Jim. Oh Yeah"! We see Nothing close to this with regard to the head of JFK.

[John Iacoletti]

The Zapruder camera did have a setting for 16 frames per second. It had no setting for 18.3 frames per second. But cameras varied from camera to camera, even of the same model. Alvarez studies of people clapping in the Zapruder film indicate that the filming rate had to be close to 16 frames per second, so it was set for 16 frames per second. However, the FBI tested Zapruder camera, not one of the same model but that very same camera, and found that at the 16 frames per second setting it actually filmed at 18.3 frames per second.

So, 18.3 frames per second is the better estimate for the film rate of the Zapruder film, not 16 frames per second.

How would Alvarez know how fast people clapped?

[Jerry Freeman]

A drawing depicting the posterior head wound of President Kennedy, made from an autopsy photograph. The small nearly circular posterior scalp wound is at the end of the hair part, near the end of the ruler, and immediately to the right of it.

Possibility----The muscle spasm/jet effect could have still happened even if a shot was actually from the front.
We have seen the forward motion of JFKs head at 312-313......



Possibility---- simultaneous shots from in front and behind [could have been from a variety of rear locations]
Some witnesses described the last shot as 'pa-pow'. 
The presidents brain went mysteriously missing...a suspiciously ludicrous shame.
Where is that autopsy photo from where the above drawing was depicted?

[David Monaghan]

Kennedy had a back brace on which would contribute to him staying in a upright position regardless of the firing position imo. Re a head shot from the rear from the TSBD half his face would have been blown off due to the steep angle, instead like the parkland doctors stated , he had a large blow out to the back off the head, case closed right enough.