I'm glad you have acknowledged your error. I've made plenty of my own over the years. What I don't buy is your limiting the miss to just 3 feet. With all that was working against Oswald on that first shot. He would have been in a very awkward shooting position to fire that steep a downward shot. He would have been firing through a window about a foot from the floor and was only open about another foot, the boxes would not have been much help steadying the rifle, and his target was close to passing under the tree which could have caused him to rush the shot. A wild miss is not out of the question for that shot.
I agree with what you said above. What I disagree with is your contention that LHO would have
intentionally taken a shot under those very poor conditions. He had apparently set up the sniper’s nest for some very comfortable and stable shots while the limo was in the kill zone just past the tree. Why do you believe LHO would take an
intentional early shot that was so very difficult so that missing by greater than 3’ at a distance of only ~105’ was likely?
We will never know these things with any certainty, but when I consider the difficulty of an early shot and that the window box and the vertical pipe near the window were both potential interference factors for a shot at that point in time, it seems to me that the shot was most likely an accidental discharge. Accidental discharges can happen to anyone and can happen at the most in opportune times. We once obtained a hole in our dining room table and chair and floor from an accidental discharge by a federally licensed gunsmith that was also a gun safety instructor. He had been told it was loaded but unintentionally had his finger on the trigger while examining the pistol. He knew better than to have his finger on the trigger, but it happened anyway.
I believe that LHO would have, at that point in time, been in the process of raising the rifle out of his lap and into a shooting position and beginning to track the moving target while anticipating shooting just after the limo cleared the tree and entered the kill zone. If LHO had his finger on the trigger and an unexpected bump into the window box or his left elbow into the pipe, then an accidental discharge could very well have been the result. My opinion is that this is the more likely scenario.