Why were their visors down? Were they antagonizing beforehand and were expecting the pushback? To make it look like a riot? Optics? If they weren't anticipating it, why didn't they lock the doors to compartmentalize the people and keep them from going further? It smells of a set-up in that regard, too.

They're clearly drawing this out and planting weapons in the hopes pantifa would grab it and get violent or a fight would ensue, thereby incriminating a patriot or something.