Osama Bin Laden Alive or Dead???

Osama Bin Laden is killed on 2nd May 2011.After ten years a team of U.S. personnel kill Osama Bin Laden near the Pakistan capital. in a firefight. Pakistan authorities help the team of America to kill his. On this occasion Obama said "Tonight, we can say to those who have lost loved ones to al Qaeda's terror, justice has been done." But what i think this is not easy to kill a person who is