Not 3 shots in how many seconds.zapgruder film was edited.
The limo stopped
Let’s not forget the bullet hole in the windshield
That's an easy task. I'm not saying he shot Kennedy. I'm not saying he did not shoot Kennedy at the behest of some nefarious organization.
I'm saying that shooting a man sized target at 90 yards in a slow moving vehicle would be easy. 19 seconds is a lot of time.