Regarding the Las Vegas shooting, I would like to point out that in none of the videos which capture glimpses of the 32nd floor at Mandalay Bay during the shooting do I see ANY muzzle flashes whatsoever. I am by far no firearms expect. Not by a long shot (no pun intended). But I DO know that high-powered rifles including AR-15's, etc., would create a highly-noticeable muzzle flash or burst of 'flame' at night measuring at least a foot in diameter, at least. A shooter with his weapon poised towards the outside of the window should be easily seen when...