It is true that the loser thug Greenberg is not a UCB student. He worked at UCB in 2013 and presently works at UCSF. My guess: he was sent to go to to UCB last week and to smash the Turning Point table. Who sent him? Antifa bosses. Sadly, Berkeley Police are not capable of limited Antifa. Thankfully, people who work with President Trump at the federal level can limit and have limited Antifa in Berkeley. Wictor spells it out. That cowardly sucker punch was brutal.
https://quodverum.com/2019/02/51/the-unbearable-lameness-of-antifa-.html
If that is true then RICO provisions apply everyone gets investigated including the University.
I hope President Trump can help limit Antifa at Berkeley. UC Berkeley is not all radicals, despite the stereotype. My oldest daughter graduated from UC Berkeley and she is a conservative. I always worried about her being there but she was all business, didn't hang out and stayed away from the crazies. Got her education quick and is very successful... now living in sane Iowa.