According to first reports, the young Iraqi was taken into the custody of the British soldiers. Subsequently he was found battered to death.
Traces of the mans DNA were found on weapons used by the soldiers as McGrath has pointed out.

Saw the soldiers on a TV report and my impression was that they had "got away with murder".

Army life brutalises young men. I saw this during the period of "National Service" in Britain.
Young men were taken from their home environment, and taught the killing skills,bigotry and hate.
Most returned home unfeeling morons, taking years to adjust back into normal society...Ake