The Marine Corps is investigating the death of a Hawaii-based Marine in California.

The Marine Corps said in a statement Saturday Gunnery Sgt. Eugene Jones was found unresponsive in his barracks room at the Staff Noncommissioned Officer Academy in Camp Pendleton.

He was found at 8 a.m. Wednesday, two days after checked in at the academy to take a course. Medical responders pronounced him dead at the scene.

Jones is from Montgomery, West Virginia. He is survived by his wife and three children.

Headquarters Company Commander 1st Lt. Nicklas Anthony says Jones was an integral part of the Installation Personnel Administration Center and the Headquarters Battalion team at Marine Corps Base Hawaii.