My best guess:
Planned, either by antifa or white hats.
If antifa, to claim violence of patriots.
If white hats, to scare the fuck out if deep state and force a change so Trump can go Insurrection Act.
THIS WAS PLANNED. CSPAN IS STAYING ON IT. THEY'D HIDE IT IF THEY THOUGHT IT WASN'T BENEFITTING THEM.
Yeah, they said guns were pulled, have not heard or seen anything of the sort.
I've never been prouder