No I didn't. I find it strange that you don't think someone can change dramatically in the 7(?) years since this happened.
No, I found that your post of suggesting that he did it because he was just a stupid teenager as staggering.
He might well be these days, a lot of teenages will do stupid, irresponsible, dangerous and cruel things and then grow out of it - either through realising their mistakes or simply getting out of the bad crowd.
There is a big difference between what you're describing here 'a lot of teenages will do stupid, irresponsible, dangerous and cruel things' and raping someone. Stupid teenagers will go out and drink way too much and throw up everywhere, perhaps get into a drunken fight. Stupid teenagers don't go around raping girls and then grow out of it. It takes a certain personality type to go through with raping someone and it has nothing to do with being a stupid teenager.
I'm constantly amazed about the attitude of violence to women that I see on this website.