This isn't a five year old schoolyard fight, this is eliminating threats to national security and mass murderers. It is entirely the right thing to do.

Did you just imply bin laden was a victim? .........

He did say that he didn't deserve it. Why are you attacking him for winning a prize? It's not like he had any influence over whether it went to him or another person.
Shouldn't your country be doing that?
It's pretty offensive to say that celebrating the death of a renowned terrorist is being an asshole. It implies that killing him in an armed conflict, where he was firing at U.S. troops, is somehow morally wrong. It's not, he deserved to die for what he did.