Yeah I think he got a job there, basically he made bots so that people could actually have fun in RS by botting all the tedious stuff, but he realised that it just made RS anti-social and noone was using bots the way he had intended, so he decided to stop making them and showed JaGex some flaws that could be exploited.
Its like the film Catch Me If You Can, which is based on real life, where Leo DiCaprio is the best forger in the world, and he eventually gets caught, but ends up working for the FBI Counter-Forgery Unit or whatever it's called.
Good new for runescape though
