His actions prior to getting chased by and shooting the first guy are what I have serious questions about.
The police were thanking him for being out there, for his support, and giving out water bottles. (Top video in the article, skip about a minute in)
1:40 something in. Police: "Are you Protecting that building" Crowd: "yes" Police: "Thank you."
https://www.washingtonpost.com/nation/2020/08/26/jacob-blake...
Also if the police are celebrating illegal acts that should tell you something about the state of justice.
Ultimately it’s the transitory nature of the participation that marks it out as not part of the community. For example a landlord might not be considered part of the community despite owning property.
https://www.google.com/maps/dir/Antioch,+Illinois+60002/Keno...
I don't think it's black and white whether you can say his communitiee were or weren't a part of the larger communities.
In regards to the "state lines" ... it's funny when people actually care about "borders".
There is also no evidence (in his immediate past) or leading up to the events proving he's guilty of premeditated malicious intent.