Where did the bullet wind up...
Yes; and where did the bullet come from? There's no hole in the windshield so it didn't go through there. Where did the sniper/shooter fire from? What location? Did the shot go over the windshield and then through his throat and then disappeared? If it went over the windshield then the shooter was located above JFK?
So a bullet went into his back and disappeared and another went into his throat and disappeared? And these shooters were, again where?
Whenever the conspiracists come up with alternative explanations they fall completely apart. At least I'm not convinced of them and I'm such an easygoing fellow.