Sorry, Thanos, got some bad news.
You're argument is based crap, and build on ignorance of physiology of the skull and brain, and you're colossal lack of knowledge of ballistics as it relates to the 6.5x 52mm Carcano round.
Unverified, and the negatives are still held by the Kennedy family lawyer(s).
Largely unqualified statements, and mostly hearsay, and or second, or third-hand stories. The throat wound was used to start a tracheostomy, so it was cut into to insert a breathing tube.
Duh.
Which is a fact, and has been testified to under oath multiple times.
And? He was taken to an Emergency Room, chest tubes were, and are procedure for that kind of incident. They never inserted the tubes because they called time-of-death.
It's been explained multiple times. Only three shots fired, and many people only heard two.