A question to those who think Oswald killed Kennedy.

Surely you are not so naive as to think that was the real Jackie in the car?

If you look at the Zapruder film: Kind of morbid, but after the neck hit, where JFK is obviously in distress and slouched forward (but still propped up nicely by his back brace), Jackie does lean in and seems to be saying something to him, right before his head explodes.

ETA:

Good one!