Editor's note: Peter Bergen, CNN National Security Analyst, is the author of "Manhunt: The Ten-Year Search for bin Laden, From 9/11 to Abbottabad," from which this article is adapted.
By Peter Bergen, CNN National Security Analyst
We climbed the stairs to the third floor, where Osama bin Laden died early in the morning of May 2, 2011. I stepped into the bedroom where he was killed and looked up at the ceiling, where you could still see the patterns of blood that had spurted from bin Laden's head when the bullet fired by a U.S. Navy SEAL tore through the terrorist leader's face.
The height of the room was low for someone as tall as bin Laden, who was 6 foot 4.
Outside the bedroom was a small terrace surrounded by a high wall. Overlooking the enclosed terrace were large and now broken plate glass windows that would have provided a lot of light for bin Laden during the day.
In the bedroom in which al-Qaeda's leader finally was killed, I had expected a frisson of something; perhaps a sensation like exploring Hitler's bunker complex beneath the streets of Berlin at the end of World War II.