Latest "insider attack" stories
It is now believed the April 7 attack was carried out by the “deliberate placement of explosive charges” by one or more individuals at an ammunition holding area and shower facility on the base.
As the troops waited for their aircraft, two Afghan National Police opened fire with M-249 light machine guns, according to the source.
By Kyle Rempfer and Howard Altman
All possibilities are being considered in the death of the Marine Raider Gunnery Sgt. Koppenhafer, a military official said.
By Shawn Snow