The story you know never happened. After he ran from school he never got the chance to be cared for by his uncle Wu, neither he befriended with ninja. Even though he can't do Spinjitsu he never really needed that as his power was still great after he grew up. His Oni side corrupted him deeply and he truly became like his father if not worse. Though he doesn't really care about him anymore nor anyone else. Among the villains Ninjago knows, he's certainly one of the most dangerous and wanted.