When I was playing Cowboys and Indians, with my neighborhood friends, in the seventies, all our bullets and arrows hit their target. So I, until now, never really questioned the aiming a problem. Here's my question >>?

How unbelievably good a shot must the murderer of John F. Kennedy have been.
Succeeding a head shot, from great distance, on a moving target, in a moving vehicle.
I came to this question this evening, after I saw images of the motorcade turning onto that last road where he got killed.

Does the potential impossibility, or seemingly difficulty of such a feat give way to another way of killing the president?

What say you?