San Diego ? Military prosecutors plan to file murder, kidnapping and conspiracy charges against seven Marines and a Navy corpsman in the shooting death of an Iraqi man in April, a defense attorney said Thursday.

The eight men are being held in the brig at Camp Pendleton Marine Corps base north of San Diego, said Jeremiah Sullivan III, who represents one of the men.

The Iraqi’s death was unrelated to the shootings of as many as two dozen civilians in November in the western Iraqi city of Haditha.

The men being held at Camp Pendleton served in Iraq with the 3rd Battalion, 5th Marine Regiment, and are members of the battalion’s Kilo Company. The highest-ranking among them is a staff sergeant.

Sullivan said he learned from Marine Corps attorneys that the charges have been drafted and official charging documents could be given to the men as early as today.

Separately, another group of five Marines in Kilo Company, including a lieutenant who commanded the platoon, are under investigation for injuring a suspect in their custody, according to a defense attorney who has been contacted by the family of one of the Marines. He spoke Thursday only on condition of anonymity because he has not taken on the case.

The Iraqi man was killed April 26 west of Baghdad, but few additional details have been released about his death.