i don't think oswald acted alone.
the telling point for me is this: the fatal head shot to JFK enters in the middle of the back of his head and exits above his right ear, indicating the shot would have come from behind him and to the left. oswald, shooting from the 6th floor, would have shot JKF on the right side and the bullet would have exited on kennedy's left side of his head. no one has ever addressed this, and it's why i'm certain there was more than one shooter.
the same trajectory issue exists with the magic bullet. it hit connelly on his left side and exited on his right. that's the wrong angle from where oswald was firing.