Text reads:

ANTIFA Bike Lock Attacker IDENTIFIED! College Professor Identified In The Brutal Attack.

The identity of the AntiFa communist, who is internet infamous for the brutal attack on a Trump supporter in Berkeley this past weekend, has finally been revealed by the weaponized autism of /pol/.  These particular American heroes have a mantra of “no one is out of our reach,” and today this has proven to be true.  Eric Clanton, a former San Francisco State University Professor, has been identified as the attacker. His life is all uphill from here.  He currently teaches at Diablo Valley College.

And there’s a video!

Assess the evidence by checking for better sources. Is this video real and properly contextualized.