I would like to know who opened what appeared to be fire exit or at least seldom used doors where the loud alarm was going off. They did not appear to be broken. They probably need to be opened from the inside. There are cameras everywhere in the Capitol. So who opened those doors? I’ve seen many videos of people walking in but not the exact moment when the doors were opened.
I did see a video of an elected democrat - a congressman, I believe - opening a one-way exit door and holding it for a waiting group of black garbed, black backpacked “civilians” to enter. He then walked around to another door and re-entered the building.
Sorry, I can’t remember where, but I think it was twitter, which means it’s probably long removed.
The Capitol police and Nancy Pelosi probably have the tapes.