http://www.youtube.com/watch?v=5rXPrfnU3G0#t=3m40s see the guy at 3:45 swinging around? http://mypetjawa.mu.nu/archives/201878.php makes it clearer.

Also the US mil report from the time (not a response to Wikileaks, from 17 July 2007, 5 days after the event) - They did have AKM/AK47 and loaded RPG + extra rounds and were hidden around the corner watching, one of their party took pics, http://www.scribd.com/doc/29487634/Centcom-FOIA?page=41 of an APC whilst their friends were apparently readying an RPG to blow them up with.

And though it's not proof of anything specific in this case the photog in question, who died, was known for getting "victory" shots of insurgents handiwork.