LOL, kung-fu is crap. Big John wanted to fight in the UFC as he was friends with some of the Gracies. I think it was Royce who persuaded him not to and to referee instead, but yes a lot of BJJ guys started teaching in Cali, and I think Big John does indeed train the police. The police aren't supposed to be able to KO people with high kicks, they detain them in the safest way possible for the cop and the suspect.