LA Times:
As they rushed the house, Navy corpsman Alonso Rogero was hit in the stomach and Lance Cpl. Ryan Sunnerville in the leg. Grainy, shaky film of the incident shows Sunnerville hopping on one leg, still firing his M-16. Marines and insurgents exchanged gunfire from no more than 20 feet. From inside the building, the insurgents also threw grenades.
The insurgents had hoped to spring what is called a Chechen ambush, named after the rebels who have fought Russian troops for years. The tactic is particularly successful when tanks cannot be used.
The strategy, Marines determined later, had been to wound Marines attempting to enter the building. When other Marines came to help them, an insurgent sniper down an alleyway would pick off corpsmen, radio operators and officers. And when enough Marines or vehicles were gathered, insurgents would fire rocket-propelled grenades.
Adlesperger fired at the insurgent machine-gun position as he ran toward Rogero and Sunnerville. He helped the two up the outside stairway to the roof. As insurgents tried to storm the stairway, Adlesperger killed them before they could reach the roof. Shrapnel ripped into his face.
Here.