'Nuclear Hellstorm' if Osama was ever captured or killed?

[FibOfAllFibs]

I feel like something is going to happen, he's a leader to a group that believes in terror and nuclear warfare and we killed him.

I was under the impression that he wasn't really their "leader" anymore. I thought now he was more of a symbol to them, and spent most of his time hiding from us and not leading terrorist organizations.