Is this supposed to justify him being killed?
Its more evidence.
so they just roughed him up and didnt apprehend him or anything?
He slipped out of his jacket while they were holding it to escape them, they didn't bother trying to recapture him
No it's 100% irrelevant to the incident where he was shot. Just another avenue to attack his character or obfuscate with context not applicable to the mechanics of the shooting.
Its absolutely relevant, it establishes his intent and pattern of conduct.
You know that until the extra details about his signal app handle and this video came out, it was just as plausible Pretti was simply a bystander who happened to be randomly in the area when ICE was there, pulled out his phone to film them and walked into the street because he saw other people do it first. I didn't take it as a given that he was part of any organized harassment/stalking/attacks on ICE- at most opportunist- but now we can say with certainty he woke up that morning planning to obstruct agents while armed.
If we found out that one of the ICE agents was an avid stormfront poster and had threads where he talked about itching to get a chance to gun down some antifa commies, don't you think that would be relevant?