From page 231 of Mark Owen's No Easy Day:
While holding security, the assaulter had seen a man quickly poke his head down around the landing. Intelligence reports said there could be up to four males living at the compound. Khalid, one of Bin Laden's sons, was most likely living on the second floor, while Bin Laden lived on the third floor.
The head peeking around the corner was clean-cut with no beard. It had to be Bin Laden's son.
"Khalid," the assaulter whispered. "Khalid."
Everyone in the compound heard the helicopter engines. They heard the shots fired at the guesthouse, and they heard the explosive breaches.
But by then everything was quiet again. All they could hear was our footsteps. Then the man on the landing heard his name being called.
"They know my name?" I imagine him thinking.
Curiosity got the best of him and he stuck his head out to see who was calling his name. The second he stuck his head back around the corner, the assaulter shot him in the face. His body rolled down the stairs and rested on the landing . . . .
Khalid was splayed out on his back, and we had to carefully pick our way past him on the stairs.
The steps were slick tile, made slicker by the blood. Each step was precarious. Nearby, I saw Khalid's AK-47 rifle propped on the step.
"I am glad he didn't man up and use that thing," I thought.