I am quite sick of this story.
The wounded men were nonuniformed fighters who were attacking from inside a holy place.
Under the terms of the Geneva Convention, summary execution is quite appropriate for either of these offenses. This is intended to discourage such activities.
Not that that is exactly what happened.
and pretending to be dead is apparently a violation too
We need to withdraw from the "Geneva convention, a bad idea that only our mean find themselved hamstrung postition.