This teen takes a slug at this senior in this shocking video surveillance footage.

PHILADELPHIA (WTXF) – A man is in the hospital after a brutal attack in a SEPTA station. The video’s a tough one to watch. The man was punched so hard he was knocked out, according to authorities. Now, SEPTA police want to identify the teens in the video to talk to them about what happened on the train just before the alleged assault.

SEPTA police are calling the attack “cowardly” and “horrifying.”

“I don’t think this man ever sees it coming,” said SEPTA Police Chief Tom Nestel.

It was a single punch that left the 60-year-old victim out cold on the platform at 15th and Market as his alleged attacker fled.

“Our victim was knocked unconscious, suffered a broken jaw . Got stitches to his face and was left laying there on the platform,” said Chief Nestel.

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