Allow me to give some deeper insight into the matter. After the initial events that sparked the situation..
>Black guy is a KICK streamer, visits wrestlers before wrestling with camera man
>Wrestler that got attacked later was at this time just meeting black guy and thinks he's another wrestler.
>Wrestler gets into character and has tiny spat with black guy Raja, hits Raja with beer can on head, words are exchanged
>A short while later wrestler apologizes, says he thought Raja was another wrestler. Offers Raja opportunity to wrestle in the show later to make up for it.

Black guy Raja is at the show waiting to enter ring. At this time, he gets a call from his dad who is FORMER PROFESSIONAL MMA FIGHTER AND UFC CHAMPION QUINTON "RAMPAGE" JACKSON. It's important to note Rampage has a crass sense of humor and constantly teases his son Raja almost to bullying levels. Honestly it looks tiresome, retarded and childish. Think school jocks that play into the abrasive obnoxious mean spirited jock stereotype way too much. That is how Rampage constantly conducts himself, especially with Raja.
Rampage upon speaking with Raja starts trolling him and calling him a punk for getting beat up by gay wrestlers. Raja is then infuriated by this and his KICK chat. He discusses making a scene for views. He proceeds to get in the ring, slams the wrestler Syco Stu IN THE SAME MANNER his dad Rampage was famous for, knocking out Syco Stu. He then unleashes a torrent of punches on the unconscious Syco Stu.
Raja is shortly seen outside whining about being fed up with being made fun by everyone.

He essentially has issues and a complex because of his bully dad Rampage, demonstrating this fact with the way he emulated his dad's popular MMA style either on purpose or subconsciously, except in a venue that is NOT MMA and is heavily scripted. Rampage failed as a father and is a fucking retard.