The police have released alternative video that appears to contradict the protesters’ claim that it was a set-up.
Note the protesters chanting “take the bridge, take the bridge” while the officer warns them they will be arrested if they proceed.
If, as the hippies claim, this was a trap and that they were invited onto the bridge, they wouldn’t have been chanting that.
It also appears the chants of “let us go” are actually demands to be allowed to proceed on the illegal march.
I would also point out the “press accounts” which Pro claims verify the hippies’ version tend to be simply recitations that the hippies are making allegations against the police. They aren’t independent verification.
Again, this seems to be simply an attempt for the hippies to drum up sympathy for a fringe cause.