A key part of the model I'm presenting is that John Connally is shot through at the same time and by the same bullet that hits JFK. There are two key differences to the traditional SBT. Firstly, it's the first of the three audible shots fired during the assassination. There is no missed first shot and, although some researchers will never let go of their cherished models, I feel this thread has successfully argued against a missed early shot.
Secondly, this has got nothing to do with CE 399. There is no Magic Bullet. I believe the bullet that passes through both men fragments on contact with JBC's wrist. The question then becomes - is it possible for a rifle bullet to pass through two men? I doubt there are many who would question that possibility.
I will be putting emphasis on the Z-film as the 'priority' evidence against which secondary evidence, such as witness statements, must be interpreted and not the other way round - witness evidence driving the interpretation of what we see in the Z-film.
The close-up of the Z-film below focusses on JBC. It begins with him looking to his right, towards the people lining Elm St. He has a quick look to his left then resumes looking to his right. By z167 JBC has completed his turn to the left and is looking towards the crowds to his right. He stays in this position, looking towards the crowd to his right, as he passes behind the Stemmons sign:
The pic below shows JBC as he emerges from behind the Stemmons sign. He seems composed and untroubled, certainly in no physical discomfort. It appears he is in the same position as when he passes behind the sign.
So after his turn to the left (@ z160's), JBC is looking to his right (from z167 onwards), towards the crowds on his right. He stays in this position as he passes behind the sign and is in the same position as he emerges from behind the sign, looking composed and untroubled.
From this seemingly relaxed position JBC undergoes a rapid and extreme reaction. He is holding his Stetson hat which is resting in his lap. Between frames z222 and z228 the Stetson suddenly leaps up to his face. This action takes approximately
one third of a second. It is incredibly quick. Up to this point the hat has been resting in his lap then suddenly, at exactly the same moment JFK is making his incredibly rapid movements, JBC also "decides" to make an incredibly rapid movement of his own:
This movement is so rapid it's difficult to see exactly how high the Stetson gets. In the zframe below (z228), the whitish blob in front of JBC's face is the Stetson.
It has moved from a resting position on his lap in z222 to being up in front of his face in z228. The speed of this movement can be measured at 0.33 seconds -
one third of a second! It is an incredibly rapid physical movement from a resting position. It is clear this extreme and rapid physical reaction is in response to some kind of stimulus. It cannot be considered coincidental that JFK is undergoing extreme and rapid physical movements at exactly the same moment.