24 January Associated Press - 4 Americans in Iraq Crash Shot in Head.

Four of the five Americans killed when a U.S. security company's helicopter crashed in a dangerous Sunni neighborhood in central Baghdad were shot execution style in the back the head, Iraqi and U.S. officials said Wednesday.

A senior Iraqi military official said a machine gunner downed the helicopter, but a U.S. military official in Washington said there were no indications that the aircraft, owned by Blackwater USA, had been shot out of the sky. Two Sunni insurgent groups, separately, claimed responsibility for the crash.

In Washington, a U.S. defense official said four of the five killed were shot in the back of the head but did not know whether they were still alive when they were shot. The defense official spoke on condition of anonymity because he was not authorized to speak on the record...