Sorry, but if I lived in an active war zone, was driving to work, and came across a bunch of freshly made corpses and one non-uniformed wounded guy flopping about, I'm not so sure I'd endanger my own children by stopping... especially considering it wasn't hard to tell which side was which based on appearance and equipment.
Also, given the various other tactics used by AQI and their umbrella affiliates, to include tactics expressly forbidden by the Geneva convention, and their blatant, constant attempts to manipulate public opinion via media deception... well, they're kinda proven repeat offenders in the liar department. You'll have to pardon me if I take what's said with a grain of salt.
As for your request for citation, it doesn't matter which one of us is right in regards to #2, they made themselves a legal target (See #3). As far as actually producing the citation, the last time I spent any thought on this incident was 2+ years ago, and being the lazy guy I am, unless you reaaaaaaly want me to go digging, I'm disinclined to do so