Where did you here there's a video
There's nothing credible, just rumors like everyone else.
Karceno based his video on someone who claims to have it who told someone that told him (i.e. third hand rumors):
Stoooooop it nikka. Allegedly

Alleged by who exactly? What fantasy world are you nikkas living in where a rapper who can't shut the fukk up knocks out another nikka who can't shut the fukk up on video and doesn't say shyt about it?
When Rosemo 700 (RIP) allegedly knocked out the Game outside of a mall, there was rumors of a video of that incident as well. Even though Game denied it, everyone in the hood said it was true. People suspect the Game payed for the video not to be released which is what Wack100 could of done in this situation. We just have to wait and see and let the dust settle.
One thing that is certain is Wack100 is not and will never be a credible source. He is a fake gangster. He never popped at nothin'. His claim to fame is knocking out a teenage white boy.