I’ve been to Dealey Plaza. The shot would have been far simpler to the left before the motorcade turned, and the car would have been going even slower then. The angle from the window toward JFK at point in the parade where was shot makes it much harder to triangulate the sounds of the bullets.

But all of this discussion is rather silly because the government itself has accepted that more than two bullets entered the president and the governor and they could not have all come from the book depository window.