Interesting. Commercial-grade floors are either concrete or very thick wood over steel supports.
Did they also hear the mice taking a crap?
"Three people on the fifth floor heard the three shots and the three pieces of brass hit the floor."
Fair enough, but what about the fellow who was a serviceman on leave and he hit the dirt when he felt a shot ring right past his ear? He was up by the wall over the grassy knoll? They also had another interview with a deaf guy that saw two men up in the parking area directly behind the grassy knoll? One man handed a "railroad worker" a gun, straightened his jacket and walked off into the crowd. The railroad guy broke down the gun and put it in a tool box and he also disappeared into the crowd.
The point is that I wasn't there and you weren't there so we have to rely on second, third and fourth hand accounts. Every year at this time I read reports about the latest or even rehashed "facts" about the assasination and what I find interesting is that every year I hear something that I have never heard before. It's hard to discount any of it because I was not there. But my gut tells me that Lee Harvey didn't have the expertise to pop off three rounds in that time frame with that gun on a moving (away) target. My jury is still out on who else was involved.
No one is disputing that shots were fired from the sixth floor. The point in question is WHO fired them. If Oswald was the man standing in the entry at that moment, it could not have been him.
Of course, that may bring up another question... If Oswald WAS standing in the entry and witnessed the President of the United States just being assassinated, WHY would he have gone back into the building to buy a coke????