Key details:

Osama bin Laden, the mastermind behind the Sept. 11, 2001, terror attacks that killed thousands of Americans, was slain May 2, 2011, on in his luxury hideout in Pakistan in a firefight with U.S. forces, ending a manhunt that spanned a frustrating decade.
"Justice has been done," President Barack Obama declared as crowds formed outside the White House to celebrate. Many sang "The Star-Spangled Banner" and "We Are the Champions."

Hundreds more waved American flags at ground zero in New York — where the twin towers that once stood as symbols of American economic power were brought down by bin Laden's hijackers 10 years ago.
Bin Laden, 54, was killed after a gunbattle with Navy SEALs and CIA paramilitary forces at a compound in the city of Abbottabad. He was shot in the left eye, NBC News' Savannah Guthrie reported citing an unnamed U.S. official.
In a background briefing with journalists, U.S. officials suggested that Bin Laden opened fire on the American forces before he was killed.

DNA tests
The special operations forces were on the ground for less than 40 minutes and the operation was watched in real-time by CIA director Leon Panetta and other intelligence officials in a conference room at CIA headquarters in Langley, Va., an official said on condition of anonymity.
The team returned to Afghanistan with bin Laden's body, U.S. officials said. NBC News reported that bin Laden was later buried at sea.
Islamic tradition calls for a body to be buried within 24 hours, but finding a country willing to accept the remains of the world's most wanted terrorist would have been difficult, a senior administration official said.
Other U.S. officials said one of bin Laden's sons and two of his most trusted couriers also were killed, as was an unidentified woman who was used as a human shield (believed to be Bin Ladens' fourth wife).

'A kill operation'
Al Arabiya TV reported that two of bin Laden's wives and four of his children were also captured during the operation.
Speaking on the condition of anonymity, a senior U.S. security official told Reuters that Navy SEALs dropped by helicopter to the compound were under orders to not capture bin Laden.
"This was a kill operation," the official said.
Intelligence officials weren't certain that bin Laden would be at the site as there was "no smoking gun that put him there," NBC News reported. But Bin Laden was indeed holed up in a two-story house 100 yards from a Pakistani military academy when four helicopters carrying U.S. forces swooped in .
Bin Laden's guards opened fire on the commandos and his final hiding place was left in flames, witnesses said.
One of the choppers "inexplicably" stopped working during the operation and landed, sources told NBC News. The chopper was later destroyed by the U.S. team and the raid went forward.
U.S. officials said no Americans were hurt in the operation.