This from Reuters "news" service:

"U.S. Marines rallied round a comrade under investigation for killing a wounded Iraqi during the offensive in Falluja, saying he was probably under combat stress in unpredictable, hair-trigger circumstances.  Marines interviewed on Tuesday said they didn't see the shooting as a scandal, rather the act of a comrade who faced intense pressure during the effort to quell the insurgency in the city. 

" 'I can see why he would do it. He was probably running around being shot at for days on end in Falluja. There should be an investigation but they should look into the circumstances,' said Lance Corporal Christopher Hanson.  'I would have shot the insurgent too. Two shots to the head,' said Sergeant Nicholas Graham, 24, of Pittsburgh, Pennsylvania. 'You can't trust these people. He should not be investigated. He did nothing wrong.'

"...Marines have repeatedly described the rebels they fought against in Falluja as ruthless fighters who didn't play by the rules. They say the investigation is politically motivated.  'It's all political. This Marine has been under attack for days. It has nothing to do with what he did,' said Corporal Keith Hoy, 23."