We know for a fact that there were "Agent Provocateurs" (AP), as identified in the 2 videos .
Posts #2, and then #3 clearly identify the AP and his facilitating buddy at :
http://freerepublic.com/focus/f-bloggers/3924285/posts
Incidentally, the AP is already out on the street !
I saw one rioter inside the Capitol handing baseball bats out the broken window to provocateurs standing outside. So, there must have been a pile of them INSIDE the building. Who put them there?