Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

This is a scoped view of the limo from the 6th floor where somebody used a white convertible instead. But, that is Elm Street. There are only front and back seats in the convertible, but they can fill in for the jump seat of the Connallys and the rear seat of the Kennedys. 

You can clearly see that if a shooter has accurately targeted Kennedy's back in the rear seat, to which the arrow points, that there is no way that that trajectory is going to continue on into the guy who is in the front seat. The angle is too steep, too downward, and it would have to change direction in order to hit Connally. This whole thing has been a big lie from the beginning. You can see how steep that is, and that's reality. There is no way, at that angle, that a bullet entering Kennedy would follow through into Connally. The Math is all wrong for it. Without deflecting off something, it could never ever happen. 

All you have to do is look through the scope to see that you can't hit both men with one shot.