U.S. Forces Unsure Bin Laden Was There Until Face to Face

The U.S. team was on site for less than 40 minutes, and bin Laden was killed resisting the assault, an official said. Three other men, one of whom may have been one of bin Laden's sons, were killed in the raid along with a woman used as a human shield. Two women were injured. No other civilians or U.S. personnel were injured