1. The only location to achieve that kind of trajectory would have been the roof of the TSB, and the shooter would be visible from the street.
There was no one on the roof.
No, such a trajectory could have only been caused by a lot of deflections. A bullet entering any curved area of the skull will have guaranteed deflection, and the dark squiggly line on the X-ray goes sharply from the neck area then off the first rib.
I used to think that very low-velocity missiles can only create large exit wounds, but it is now my understanding that exit wounds from missiles barely exiting the tissue can be very small, and can resemble an entry wound.
2. Please explain, using your apparently vast knowledge of firearms, what you mean by high-tech ammunition as it would have existed in 1963.
I think it was Francis X. O'Neil or James Sibert that said during the autopsy, the possibility of high-tech ammunition was being investigated before they just settled on the undercharged round hypothesis. Bullets made of wax, ice, plastic, were suggested. I understand that bullets that dissolve into a very fine metallic dust existed.
There's ONE x-ray out there. What do the others show? Oh that's right, nobody's seen them.
What? Without the few expert interpretations on the X-ray's dark squiggly line, it would just remain a random dark squiggly line. We now know that it must represent some kind of cavity between the tissues filled with air. If the rest of the X-rays showed an unambiguous track from the back to the throat, it would be paraded around more. Lattimer throat the dark squiggly line showed a track from pretty high in the neck to the throat, even though he had already seen the back wound photo showing it much lower.
And you have yet to explain why a 6.5x52mm, 160 grain round fired from a rifle with a rifle with a barrel that gives a 1:8 twist ratio, and struck the President at a velocity of 2,700fps without striking bone should be ruled out as a through and through shot in this case.
For one thing, the autopsy doctors almost certainly knew the throat wound represented a tracheotomy incised over a bullet hole while they still had the body, but lied and said they only learned that later the next morning. Soon I will make a long post compiling the evidence for that.
Especially since the fiber evidence from the President's coat and shirt show the same sized round entering the back and exiting the front. The penetration capability of the Carcano round has never been in question.
You insist that a suppressed .22 round can do the same damage, and it just can't.
The validity of the fiber evidence has already been addressed here:
http://www.internationalskeptics.com/forums/showpost.php?p=11795880&postcount=2989
But nevertheless, I am not saying here that the throat was not an exit or the back was not an entry.
The brain removal "problem" is your failure. Everyone else has figured it out. Combine that with your inability to try to understand ballistics - something that any American can resolve with a couple hundred bucks and a visit to a shooting range that rents guns, and gives lessons - and you have provided us with a Rosetta Stone into your ability to objectively research simple matters.
Please tell me how you solved the brain removal problem. This isn't like RoboTimbo repeatedly asking the same stupid questions, this is a question that has yet to be answered by anyone advocating an entry in the cowlick.