Given that until today you thought the red blob on the Zapruder film was brain tissue,
If you're talking about the big red blob on Frame 313, it IS brain matter, and blood, and bits of bone exploding out of JFK's head.
I would suggest staying in the rabbit hole to gather more facts.
There are no facts to be gathered in the rabbit hole..only half-truths, outright lies, and false assumptions. The rabbit hole is inhabited only by nutcases, self-serving liars and people like I used to be, who hadn't done the research and believed the crap dished out by people like you and the rest of the "inhabitants".
Disbelief, there is one thing that I can be certain of in a case as murky as this: Kennedy had a small bullet wound next to his external occipital protuberance.
Which is in about the right place to be the entrance would for the kill shot
And since the brain photographs and X-rays show nothing we would expect from a high-powered round could have entered there and exiting the frontal-parietal area (severe damage to the cerebellum, bullet fragments in the lower head area), it would appear that the large head wound was created by a completely separate missile. To me, the biggest mystery in the shooting is what happened to the missile that struck next to the external occipital protuberance.
Its no mystery to me at all. What some people expect regarding the explosion of JFK's head is that an exiting bullet ripped a large defect and the bullet and brain matter exited at the defect. Then people like you question where the exit marks are and why the bullet cannot be found. The answer is that the bullet fragmented (exactly as a full metal jacket bullet is designed to do when it hits bone) so it left no intact bullet, and no single exit hole. Instead, it created what is known as a pressure cavity, which is caused by the bullet losing most of its kinetic energy in under a millisecond, and that energy has to go somewhere. The result looks like a small stick of dynamite had been set off within the head.
The authorities from the autopsy were clear and affirmative that the small wound in the scalp and skull was not high above the EOP at all, but right next to it. So one can't get out of this problem by simply raising this wound to fit a preferred trajectory.
No, they only thought that
before it was understood that JFK had his head tilted forward and to the left. At the time the autopsy was done, the Zapruder film had not even been developed yet, let alone seen by any of the pathologists. They assumed that JFK was sitting upright when he was hit. Once you place Frame 312 against the bullet trajectory as I have done above, it becomes clear what happened. - the entry wound is where I would expect it to be, and the explosion of brain matter and blood seen on Frame 313 is also where I would expect it to be..