"The BBC also reported a witness saying a man on a motorbike had opened fire on the U.S. soldiers.

A total of 13 people were killed and at least 75 wounded, Reuters reported, citing Falluja hospital director Ahmed Ghanim. Some local people gave higher estimates, Reuters said. International Committee of the Red Cross spokeswoman Tamara Alrifai in Geneva said 15 had died. The Red Cross has sent relief supplies to hospitals for the wounded, whose exact number isn't known, Alrifai said. "

Given all the confusion, the man-on-the-motorbike report seems to make a lot of sense. The fog of war is not like an academic analysis. If there was a jerk on a moped using an AK47 on troops and they fired back, not knowing immediately where he was, it could have started the whole ruckus.

A