I asked...Where is an [authentic] autopsy picture showing a bullet wound in the back of the neck?
And you were shown it.
That bullet hole is still in in the thoracic back and not the BACK of the neck and it should have gone downward [as was mentioned earlier]...how would it have it exited at the adams apple area? Those drawings devised by whoever still do not show what is in the autopsy photo. Cattle crap. I think that will do with the moron crap. OK? You don't agree but check the forum rules on insults.
Because there's a ruler in the photo, we can measure with some confidence (but not absolute confidence) areas near to the ruler. The ruler goes off-plane a bit as it is seen lower down, but we're only interested in the area where the in-shoot is.
I combined standard 3D models of the male body and skeleton scaled to a male body 6' 1" tall. The scale is 1:1. The only articulation was to the shoulder group of the outer body and two bones (per side) in the skeleton: the scapula and clavicle; the arm bones accordingly were raised but not rotated. For the Stare-of-Death inset, I copied the head and tried to match the retroflection seen in the photo. The photo with the back of the head shows the head retroflexed but it wasn't as much as in the Stare-of-Death picture. I decided not to duplicate the retroflexion for the back of the head model because it doesn't really affect the in-shoot wound.
"A" is the distance from the lowest crease on the President's nape to the bullet wound, as reported by the 1968 Clark Panel. "B" shows an arc that is 14 cm away from the bullet hole; the arc line appears to intersect the tip of the right acromion process and the right mastoid process, just like the autopsy and face-sheet said. The lowest neck crease was located with reference to the Left-Profile photo.
For what it's worth, this particular model shows a missile path from the base-of-the-back-of-the-neck wound to the exit point in the Stare-of-Death photo does not strike the main spinal column, and passes it at the C7/T1 area. In this particular case, it does show a strike on the C7 transverse process, but remember this is not Kennedy's actual skeleton. A reasonable margin-of-error must be considered.
Just a rough early attempt and at least a blueprint for more capable work in the future.