I saw them in Austin, and there's the video of the guy breaking windows at the Minneapolis AutoZone. Here's one who showed up in my small midwestern town:
Probably a mix of different people with different motives: agent provocateurs, looters, politically motivated property destroyers, struggling business owners seeking to cash in on the insurance, thrill-seekers.
https://www.facebook.com/100005354022635/posts/1467302680124852/