I'm not saying these guys are paid rioters. Maybe they're just some regular ol' neckbeard rioters who like to riot so much that they'll drive across states to help burn a city down.
But if there were people who were "down with the revolution" and were being paid by someone to travel to places where tensions are high and dramatically increase said tensions ... that might look something like this:
They're all acting together, they're organized, they're from out of state, they're in a stinking school bus, bread truck, and van, they have riot gear, gas masks, helmets, drugs, illegal (read: highly explosive) fireworks, and they were arrested at a gas station filling "multiple fuel cans."
I'm not saying these folks are paid professional leftist rioters but it would sure seem that these folks are paid professional leftist rioters.