Why would a lone assassin in that particular 6th floor school book depository window pass up all the obvious to anyone who has actually been there advantages offered by shooting when the car in which the target was riding turned right onto that stretch of Houston Street and was coming straight at him with no angular deflection and wait until his intended target was accelerating away at a declining angle to shoot unless he HAD to do so for the target to be within a pre designated kill zone?
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