[jgoode]

That is exactly right. I have been to Dealey Plaza many times and it is almost semi-cavern like. The echos on that day would produce many different views from ear wittnesses as to where the shots came from. But the fact remains that 3 guys directly below Oswald on the fifth floor heard the shots come from directly below them and even heard the sound of the bolt action.

[jgoode]

Whoops, make that "they heard the shots come from directly ABOVE them" and not directely BELOW them! My mistake.

[Shooter 2.5]

They also heard the brass hit the floor. The floor was heavy planking with cracks between the boards. One even described the light from the sixth floor.