Others can have fallen off the roof.
Change in position, posture, angle of the gun can and will affect the trajectory of spent casings.
I would guess those 5 are from the first barrage, and he tried changing position to get a better shot for the remainder.
Or someone else shot off 3-5 more shots.
Some other agency’s “counter-sniper” missed.
Pretty sure a dog could rapidly locate casings that rolled off the roof, or were ejected over the side. .
Shots 4 - 8
Shots 1 - 3 were a different shooter.
We know that another shooter (other than Crooks) took three shots.
That is not speculation.
That is fact.
https://peakprosperity.com/audio-analysis-raises-troubling-questions/
Ridiculous. The local LEOs scoured the crime scene for evidence. That includes the ground surrounding the building.
Or the cops are Secret Service tossed a couple of extra casings on the roof.
In the vid from near Crooks, the 1st 3 shots are distinctly different in at least 3 ways from the 2nd group, of 5 shots: Loudness, the “sound characteristic” (aside from the loudness), and rate of fire (MUCH different). It seemed most reasonable to me that Crooks got off 3 shots, then an LEO in bad position but close to the camera (cell phone recording) and / or using a heavier weapon ripped off 5 shots @ Crooks, then the counter-sniper group further away from Trump made the head shot.
But, if there really were exactly 5 casings attributable to Crooks, that falls apart, because clearly the very 1st shot in the group of 3 is the one that winged President Trump.