Alright based on one fact, the possibility of Oswald being the lone shooter, is eliminated, and therefore, by definition this is a conspiracy, don’t know who else was in it Oswald definitely in it, probably as both a shooter and the guy who would take all the blame. Now you are all wondering what this fact is, well the cart wasn’t going faster than ten miles an hour, so a shot from back wouldn’t have had a backwards splatter of brain.