It's good that you're reflecting on it at such a young age too, that's a very respectable thing. I was 10 at the time, in school. I had visited the towers on 9/10/01 as a tourist with my parents. My mother then had a meeting in the towers at 11:30am on 9/11. She was just a few hours away from being trapped in there. I lost 6 of my friends in the tragedy, so ever since then, I've been devoted to creating some kind of artwork to signify just how much of an impact 9/11 left on us.
I know for sure that there's more to the whole situation that the public knows, but then again I know that they won't tell all just because it would cause a public disturbance. I'm glad they found him, but I sort of wish he was found alive. At least that way, they could imprison and question him.