Obama is smart. He made/authorized this operation to kill OSAMA happen right before his 2012 election. Now he's gonna gain more votes since everyone is happy about it. This will give Obama a higher chance of winning the next election.
I don't know why they killed Osama.He was a soldier at first and helped a lot of people ,damn people wanted him to do something he didn't want to.
He turned against them and made the Al-Qaeda.
The only part he did wrong is to attack the US and kill innocent people.If he just killed soldiers it would be better