One more recent theory, has at least some interesting features that cleans up some of that event imponderables. The story goes, that the advance team of Secret Service spent the night prior in Dallas at JR’s club drinking into the wee hours of the morn. Hung over, a then brand-new fielded weapon - the Colt AR-15, is handed off to a relatively inexperienced agent.
Oswald fires a couple few rounds, and at least one misses. But not all of them. The agent carrying the AR-15 attempts to stand up in the trailing car from the Kennedy motorcade with the weapon just as they speed up - and he fires off a round inadvertently. Guess where the round goes?
I remember reading Comgressman Yarborough (D) Texas stating that he smelled gunpowder very strongly all the way to Parkland hospital, something that would never happen from the shots Oswald fired from the 6th floor of the TSB building.
If true, it also explains a lot of the ensuing coverup, and the “theft” of the president’s body, and lots of other jiggery-pokery with the autopsy. And Mr. Ruby might have been just the guy to get rid of Oswald. If there had been a trial, what was Oswald going to say? “Somebody else was shooting at him too”. And he would have been correct
That’ll never do.
It’s a great theory but the head wound came from the front right side.
Some needs to explain the bullet hole in the windshield