1) Kennedy's sudden quick reaction as he reappears from behind the sign (that eventually brings his hands to his throat) are neither assumptions, unsubstantiated claims, nor irrelevant to my questioning Hinrich's claim of a z228 impact.
2) You missed my question mark.
3) What 'both actions'? Hinrich's gif utilizing several frames starting at z228 which toggle back-and forth shows nothing of a second stimulus.
Tell us why you are insisting on a second stimulus. Better still, show us where in the film.
Bill,
I'm afraid you're wasting your time trying to reason with John.
In my experience, it's impossible to prove to him, minus ten film clips showing the same event from different perspectives, eighteen photographs, eight notarized statements (in triplicate), and five authenticated DNA test results, anything he rationally (or otherwise) fears might implicate his hero, self-proclaimed Marxist Lee Harvey Oswald, or, conversely, exonerate the evil, evil, evil "Military Industrial Intelligence Community Complex" (which many brainwashed Americans, to Vladimir Putin's glee, nowaday call "The Deep State").
-- MWT