Oswald would have had to shoot over the windshield and over Connelly. It really isn’t as good a shot as you would think.
This is the camera view from the actual angles Oswald had inside the Book Depository and the sniper’s nest. The camera is set in a cardboard box so as not to distract from the exhibit. It’s a live feed. Just hit reload every minute or so. I hope this gives you a better idea about the trajectories.
http://www.earthcam.com/jfk/dealey_nojava.php
Very neat attempt but I’m not buying it. Oswalt was on the 6th floor. The car was on the ground.