If you watch the video that The Hill ran (live posting), you can hear the organizers megaphone steering the protestors away from the street they turned up and steering them back down to that intersection.
Not everyone has to be in out, just a few herding the sheep.
I have not seen that. Man that would be a pretty risky conspiracy. Just one conspirator gets cold feet and rats the others out and everyone is up on Murder One.
I guess ID as many “conspirators” as you can and follow it forward and see if the end up getting “Seth Riched”.