Even if your assumption is true, SO FREAKING WHAT?
Tensing got off a clean shot. Using your version of things still indicate some basics.
Tensing did not reach into the car until AFTER DuBose started it and put it into gear.
You have just spent multiple posts arguing that the shooting was justified because Tensing was dragged 20 feet before he fired the shot. Now, you are saying that it doesn’t matter whether Tensing was dragged 20 feet before he fired the shot. As I said, you are going to keep moving the goalposts, and keep twisting the evidence, until you find some narrative that, in your mind, justifies the shooting. Facts be damned.
You are mistaken on that point. Any civilian who uses deadly force, and claims it was justified by previous direct contact with the side of a car that flees, is apt to be charged with aggravated assault up to murder 1 (depending on the jurisdiction and other circumstances). It's a fact-intensive point, and turns on the threat a reasonable person would perceive in the same circumstance. There is a case where a cop was convicted on a deadly force charge, shooting at a car that tried to hit him, but missed, and was going away when the shot was fired.
-- (Before during or after he shot DuBose. Who cares and what diffenece does it make to these above mentioned material facts?) --
Before or after has a potential difference in causal link to "car is moving." The cop, who has put himself into a situation with the burden of establishing self-defense, has to convince the jury that the car would have moved even if he hadn't fired a round into the driver's head.
At any rate, "who cares" is going to be the jury, unless the cop cops a plea.
Before during or after he shot DuBose. Who cares
Did Tensing claim that he shot DuBose because he was being dragged, or not?