I appreciate your informed comment. I have never used AI on purpose (other than spellcheckers and translation services) and have no idea about aspect ratios and quality potential. From other reporters that have shown AI generated crowds in music videos, for example, there were flaws like fused fingers and etc. I didn't see any of those, and that's all I knew to even look for.
I do suspect AI, which is why I mentioned it several times, and asked for proof it was AI. If no one can prove it's AI, it's probably not AI. That's the scientific method in a nutshell. I don't know anything about bit rates, but I think there are programs that alter that, such as FFMPEG (which I should learn to use, I am told). The additional information about aspect ratio is similarly strong evidence, but I concede it's possible that video can be recorded with apps that provide a more square aspect ratio, or could be modified for that purpose after recording. Aspect ratio of cell phone recordings is a complaint so common I have even heard it, so it's plausible it could have been altered in those ways. However, I think your analysis is stronger evidence it's AI than the video is of a real recording, so that's what I'm left with.
Either way, as I pointed out, Tyler Robinson didn't have that bolt action .30-06 on him when he climbed the stairs - if that's him in the screencaps the FBI released - nor did he have it when he jumped down from the roof of the Losee Center. It's too bulky, even the two main parts it could be broken down to in the field, for him to have concealed it successfully. He therefore could not have been the shooter using the firearm the FBI claims he used. Someone else pulled the trigger on Charlie Kirk - or there is another firearm we aren't being told about - and even if it's not the Brown Shirt spook in the video, it's possible that an effort to source and carefully examine published video of the event might provide evidence of who the actual shooter was.
Thanks!
Edit: in a video @manorvillemike shares below, several videos taken with cell phones are shared starting at ~29 minutes, and I note that all 4 different videos referred to as 1-4 in that clip, are essentially in the 4:3 aspect ratio. I don't know if they have been modified after recording or not, but none of them aren't in that aspect ratio. Camera 4 in those clips shows the Brown Shirt spook performing the same motions as in the video I posted in the OP. It actually appears to be that same video, only edited to focus on the movements of the Brown Shirt spook during the moment Charlie Kirk was shot.
From the view of Camera 1 in that clip, the guy taking Camera 4 video appears dressed in black with his face obscured by the canopy over the stage, although it could be the old guy wearing a ball cap further to the right in that view from Camera 1. Perhaps that information can be of help in identifying the Camera 4 video that shows Brown Shirt spook.
I watched a bit of it, given there is various angles now in the public domain, the analysis can be left to people who have experience with firearms and those with experience of how they behave.
4:3 aspect ratios is still suspect, but - I suspect these videos may have been filmed vertically on mobile, and on desktop, which is typiclly 16:10 , perhaps people have universally cropped those videos to make them easier to edit / bring attention to the content.
Given the various angles and the consistency of the footage, I would rescind some of my doubt about it being generated.
The more information that comes out, the less I believe that Robinson was the shooter. If Candace Owens statement that there is no exit wound in the back of the neck is factually correct, it is certain that some other weapon shot Charlie Kirk, because very few rounds would not pass through the neck. Only very low powered rounds like the .22 short might not. The video of the palm gun showed very little recoil, as if it were comparable to a .22 short. What is obvious is that the FBI's narrative is impossible, and is not what occurred.