EXACT MOMENT Capitol POLiCE OPEN GATE to let marchers through. See right side of picture. Cop has right hand holding gate bar.
In video of event see Cop looks quickly around then pushes gate back.
Crowd of marchers look stunned that cops opened gate. Then Cops lead the marchers inside - Cops walk inside as if leading with marchers following behind them.
Hoody guy - Insider of the Cop region - then urges crowd Marchers to enter inside the gates/ fence.