That video is apparently not the shooter but a student at ASU.
https://www.dailymail.co.uk/news/article-7974217/amp/Shocking-moment-ASU-student-yells-Slash-Republican-throats-Trumps-acquittal.html
That’s very possible.
But reports are out that Crooks went to ASU. Reports are out there that says his van has Arizona plates.
But even though some X post says that nut was Crooks doesn’t mean diddly.