US 
special forces on Sunday killed Osama bin Laden, head of the terrorist network responsible for the 9/11 attacks, in a raid on a compound in Abbottabad, Pakistan, north of Islamabad, President Obama announced Sunday night in an address to the nation. “Tonight, I can report to the American people and to the world that the United States has conducted an operation that killed Osama bin Laden, the leader of al Qaeda, and a terrorist who’s responsible for the murder of thousands of innocent men, women, and children,” said Obama. A small US military team “carried out the operation with extraordinary courage and capability.” None of them was harmed, he said, noting that they “took custody” of bin Laden’s body as proof of his death. “[A]s a country, we will never tolerate our security being threatened, nor stand idly by when our people have been killed,” stated Obama. “And on nights like this one, we can say to those families who have lost loved ones to al Qaeda’s terror: Justice has been done.” (Obama remarks) (White House blog entry with video of Obama’s address) (AFPS report by John D. Banusiewicz)
See also:
President George W. Bush statement
CIA Director Leon Panetta statement