Her neighbor didn't hear an echo. Why not?Was this the same woman who decided which was smaller after seeing a 4 year old photo on Trevon in his football uniform?
No... to the three shots... it's called an echo.
Probably not in the same location, not in the same angle of attack to the location where the sound initiated. If your location is opposite something that reflects sound you will get an echo. If your location is opposite empty space and/or something that diffuses sound any echos would be less pronounced and/or not heard.