All one has to do is look to the JFKA. We have two groups of witnesses who all independently identified where they heard the shots come from. They all heard the same shots, yet the two groups identified a different location for the source of the shots. One group of witnesses all independently reported a simple fact and one group has to have been wrong.
First of all, those were hardly all the witnesses who reported on the direction of the source. I am looking for an instance where all the witnesses as to particular fact observation were mutually consistent but provably wrong. Example: In this case, all the witnesses who were observing JFK and reported his reaction said he reacted in ways that are inconsistent with anything before z186. Not a single witness said he continued to smile and wave after the first shot.
Second, sound direction is not a simple observable fact. It is a complex process that relies on the brain's perception of a timing difference between the arrival of a sound wave front at each ear. Given the number and location of large reflecting surfaces, that sound difference will depend on the observer's location and proximity to reflecting surfaces. We can see that in the way that observers' sense of sound direction varied by location. Those closest to the rifle had no confusion about the direction of the source. Those farthest away were confused.
