My opinion as well. Before they caged in the place where Oswald's rifle was found, was able to go the the window from which he is supposed to have shot. The spot is quite close to where the shots were fired. I could have got off three rounds in the time those shots were fired. Although I probably would not have been as accurate, even I could have hit the car with each round. The fact is that the car continued to move away in a straight line without speeding up.
Ever read 'Mortal Error'?
One of the best forensic analysis' of the JFK assassination available, IMHO.