Riding on this comment to post a reminder:
Some of you have been to Dealey Plaza, right? Or at least seen it on Google Maps street view? It's not a huge place, it's not a small place, it's a medium-sized place. The grassy knoll is a completely different location than the east side of the TSBD. So why are some of you totally content with thinking that shots somehow echoed and "bounced" around to sound exactly like a shot from the knoll area? The HSCA earwitness report did note that firing shots in Dealey Plaza creates echoes, but their two observers reported data indicates that the noise of an unsuppressed rifle doesn't just "bounce around". The HSCA experiment observers found it easy almost all of the time to tell where a shot originated. So any speculation about the acoustics of Dealey Plaza being like that is total discredited hogwash. The burden of proof has been on the Lone Nutters since the 70's to show how ~40% of witnesses could think shot(s) came from the knoll area. I already proposed one idea: guns with noise-suppressors in conjunction with supersonic ammunition. What's yours?