Oh, so that's actually given information? Like I said, I haven't been following the news.

I dunno. Honestly, there's a lot of crap that needs to happen for the apprentices to turn into their Nobodies. Ienzo isn't even the most dramatic change. Maybe Braig and Ienzo's experiments with darkness made them age, which is why they can be so "buddy-buddy" in that one extra scene. *terrible and should not be speculating*