Im uploading it to Metacafe right now...
Video begins with just some stupid stuff...then at 1:57 the guy in the black hoodie (Joey Jihad) starts rapping. He gets about a good 4-5 bars in before a dude in white sucker punches him in the face. The facial punch happens at 2:07. The guy in the white shirt that hits him...is a boxer from philly who was found dead due to a shooting on april 22nd.
Edit: Here's the video on metacafe...should be available soon
http://www.metacafe.com/watch/116555...ihad_knockout/