In all, 17 people were killed when Blackwater private security guards opened fire in a crowded Baghdad neighbourhood as they protected a State Department convoy.
Blackwater said the guards came under attack.
At least 14 of the shootings broke rules for private security guards in Iraq regarding the use of deadly force, the Times reported, citing unnamed civilian and military officials briefed on the case.
US officials contacted by AFP declined to comment for this news story, citing the "ongoing investigation."
"Sorry, but given that this is an ongoing investigation, we are not in a position to comment at this time" said Dean Boyd, a Department of Justice spokesman.
Blackwater has been accused by its detractors of having a cowboy mentality and a 'shoot first, ask questions later' approach when guarding the steady stream of politicians, diplomats and other dignitaries who parade through war-torn Iraq."
Labels: corruption, war