Not to Hijack the thread, but he would be mostly a combo of Judo and Jujutsu. I was looking into them last night before bed (meaning 6 this morning, lol) What I saw was that Jujutsu mostly focused on Pins, joint locks, and throws. Judo is derived from Jujutsu, so it is essentially the same. I don't have the physical and practical knowledge of these things, but hey, that's why I want a D&D character about it....
Anyway, back to you, MyndBulletz!