And here’s a link to a WaPo column with interviews after-the-fact. The woman, a Lauren Victor, had marched in previous BLM demonstrations. She explained her reaction like this:
“It just felt overwhelming to have all of those people come at you. To have a crowd — with all that energy — demand that you do this thing. In the moment it didn’t feel right” […]
“I didn’t think anyone was actually going to do anything to me. I appreciate their anger,” […] “On one level, my best guess was no one was going to hurt me. But those things turn on a dime.”
~Max