Shhhh. If he's not an intellligence source, feeding info to the SASmen or 14th Intel Coy, he's helping provide useful concealment for those who are. Let him serve such a useful purpose for the duration of the unpleasantness, and once it's concluded, either the most capable friends of those who died will attend to the due bill, or in the event the SAS warn them that he was helping out, they'll direct that effort to others more deserving.
At least the BGS/GSG9 know for certain the details of what happened with their partners, and the families know. That makes it worth having had the right fella in the right place at the right time, whether he's *just* a journo, or there's a bit more to him than that.
I noticed that he dialed up a certain address with two Fedayeen black flags, and a guy with blue eyes. How hard will it be, in a small town in Iraq, to find a former Iraqi special-ops guy who has blue eyes? If the description he gave us is accurate, the Iraqi police, and maybe the Western spooks, already know who his "host" is.
"Fascinating", as Leonard Nimoy used to say.