I wish I knew exactly how he got it over it. All I know is he did get past it, and he’ll still stumble over a few words here and there but I only pick up on it because I stutter myself, most people would have no idea. I think really he just didn’t let it stop him from living his life. Which I’ve begun to realize is the key for myself. If you stutter but you’re speaking with confidence, making solid eye contact, and still finish your thought, it usually helps me be more fluent when I go to speak again with someone.