The video footage from inside the chambers at the time of the shooting showed people were still in chambers, mostly up in the second floor gallery, but a few on the floor.

I don't have a good phrase for people that willfully chose to believe something deranged. But believing that plainclothes security is going to let a mob get their hands on a congressman, that's it.

I agree with you, these folks charging through the Capital and expecting to get away with it were completely deranged.