John Connally is not turned nearly as far to his right [in Z-180] as he was at Z-255, as seen in Altgens-6.
I didn't say that he was.
Being shot in the back can make one contort in all kinds of strange ways.
Connally makes no attempt to turn his head [farther to his right than Z-180]. The head can turn past the shoulders. He’s got another 90 degrees of head turn left to go.
Just like Linda Blair in "The Exorcist"?
Having just heard a nearby high-powered rifle shot come from behind him while riding in a slow-moving convertible with the President of the United States, maybe he didn't want to linger in one position for too long.
Do you think he should have turned all the way around and smiled for Oswald?
He said that after he heard the sounds of the first shot, he turned to his right -- not to look directly at JFK, but to try to catch a glimpse of him over his shoulder.
He tried doing that, but he couldn't "see" (i.e., recognize) JFK because JFK had turned HIS head TO HIS FAR RIGHT and had raised his right hand to wave to someone, thereby partially blocking his (peripheral) view of JFK's face.
You have another twenty-four witnesses besides Nellie who said that JFK reacted to the first shot.
He did consciously react to Oswald's first, missing-everything, shot -- by quickly and briefly turning his head towards Jackie around Z-143. Then he started turning his head back to his far right and started waving to somebody around Z-176 (see above).
Then you must reject another forty-seven witnesses to get rid of that annoying 1…..…2….3 shot pattern that conflicts with the second-shot SBT.
Eyewitnesses and earwitnesses are notoriously unreliable, especially in an echo chamber like Dealey Plaza.
Photographic evidence trumps sketchy eyewitness / earwitness recollections.
You have to deal with the fact that all five of the passengers in the limo consciously but rapidly moved their heads between Z-140 and Z-150, as did Glen Bennett and George Hickey in the Secret Service follow-up car, and Rosemary Willis on the other side of the street.