Corey Seymour is a villain of the Vancouver riot who along with friends ganged up to deliver a vicious beating to a man during the riot. Seymour is wearing the black track pants in the video below and is the second man to punch the guy in the white shirt with the Atari-like symbol on his shirt. I don't know what preceded the altercation, but for some reason, one of Seymour's friends punched the victim and then Seymour threw the second punch and his other friends ganged up in an act of utter cowardice.
Corey Seymour is utter White Trash and gives new meaning to the word "shithead." Hopefully this violent asshole is caught soon and sent to prison.