i did have a look at that video at Scooper. In the file properties and it’s details, the Length and Media Created date fields are empty. The data rate is 3154 kbps.
With the video at TMZ, The Length is 00:01:33 and Media created date is 07/14/24 12:32 PM, almost 1 day after the event. The data rate is 2350 kbps.
The size of these two files are different and leaning towards transcoding variations as for why. i do get what you are looking for and been on my radar as well.
The first version of this video i saw was on Twitter. The media creation date of this file was 7/14/24 1:45 PM, a bit over an hour after TMZ finished their version. It was also posted on Twitter at the same time, so it looks like the media creation date got set at the time of upload.
There are also other differences, no start logo, no enhanced frames at the end, has a Butler Pennsylvania mark. The frame rate of this file was set at 60fps causing some frame problems. The image resolution is also poor making it impossible to identify any thrown casings. I have been able to spot the slight shoulder recoil in this version when knowing what to look for.