A Marine Corps legal tribunal called to investigate the killing of up to 19 Afghan civilians is scheduled to convene on Tuesday of next week.
The Court of Inquiry will examine the roles of Marines present during the shootings.
The inquire is focusing on Major Fred Galvin, who was the company commander, and Captain Vincent Noble, who was the platoon commander at the time of the incident.
As many as 19 people were killed and 50 injured when members of a Marine special operations company opened fire in a crowded roadway in March.
Army officials said the convoy was rammed by a minivan full of explosives, but Afghanistan's Independent Human Rights Commission said it didn't find evidence the military unit was under fire.