TL;DR I need another sound recording from the vicinity of Crooks’ building before you can convince me of a second shooter.
The sound difference between 1-3 and 4-7 on recording 2 (near the building) is stark, so I see why people jump to two shooters. I think another sound recording from near that building (if it exists) is needed to decide one way or the other (without super duper techo sound analysis.)
I don’t think the gun(s) used can be particularly different because in my (very limited) experience, a 308 sounds very different to a 223 at 100 metres and the first 7 shots all sound very similar in recording 1 near the podium.
There’s also the issue of the dog that didn’t bark and the 9th delayed shot. AR15s usually come with at least a 10 round magazine.
Scenario A: Crooks shot 1-3, someone else shot 4-7 wildly.
Scenario B: Someone else shot 1-3, Crooks shot 4-7 wildly.
Scenario C: Crooks shot 1-7.
Scenarios D-Z: Something more complex and messy
The shooting stops abruptly after the sound of the 8th bullet (on the building recording), then there is a pause of 8(?) seconds before we hear the 9th bullet (on the podium recording).
I don’t like Scenario A as how or why did the other “wild” shooter know when to stop almost immediately before bullet 8, if it was 8 that killed Crooks. Not enough time or knowledge to react. If it was bullet 9 that killed Crooks, why did the wild shooter stop at 4 bullets when he had at least 6 more? This scenario also requires Crooks to have been the measured individual, and his actions beforehand just don’t fit with that.
Scenario B & C - if Crooks was rapidly shooting why did he suddenly stop at 4/7 bullets rather than fire again in the gap between bullet 8 and 9? It was bullet 8 that killed him, not the delayed one.
The fact that the “wild” shooter stopped before a full magazine was used indicates to me there was only one “wild” shooter and he was stopped before he could empty his magazine.
I don’t like scenario B because if this was a well planned “deep-state” assassination attempt with a “deep-state” marksman the measured shooter would probably not have missed. Without the turn of Trump’s head the bullet would have hit the back of his skull, so was well off centre. Trump’s head turn was not enough to save him from an experienced top class shot with all the gear at that distance, but just enough to save him from a kid who didn’t calculate the wind correctly with iron sights. Recall that the counter sniper who shot Crooks was spot on over that distance.
Comparing the two videos, here is my version of Scenario C which is what I think happened: Crooks got three measured shots off about half a second apart. At that stage Trump had reacted and ducked. There’s a two and a half second delay where he makes a decision to shift his shooting to other targets. These are rapid and less well aimed as he is firing into a crowd. He gets 4 bullets off before the counter-sniper bullet stops him. God knows what the 9th bullet is all about.
Also, as I stated above, there is tension in your two analyses and between the two recordings wrt to bullet 6. The recoding near the building makes it sound like shots 1-3 were from 1 rifle and 4-7 from another, but bullet 6 doesn’t seem to have a report which would mean it came from a third gun(?!) that just so happened to sound exactly like the gun shooting bullets 4,5 and 7 in the sound recording at the building…starts getting a bit messy.