HONOLULU, Hawaii -- The Marine Corps has finished its investigation into the collision of two Marine Corps helicopters that killed 12 Marines, including a man from College Station.

According to the NBC affiliate in Honolulu, the report concluded pilot error and a lack of training are to blame for the crash. The report also said the pilots' squadron neglected to focus on basic aviation practices, leaving personnel ill prepared for the rigors of flying in formation and in the dark.

Major Shawn M. Campbell, 41 of College Station, was among the 12 Marines killed. The married father of four graduated from Texas A&M University in 2001.

Maj. Shawn Campbell with his family.

In a statement Tuesday, the Marines said both CH-53E Super Stallion helicopters were mechanically sound.

"This loss of life was tragic and is felt deeply in the Marine Corps community," Marine Corps Pacific spokesman Lt. Col. Curtis L. Hill said, in the statement. "Our thoughts go out to the families of all those affected by this incident."

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