The death of a retired Marine major general is under investigation after his body was found at the training base he once commanded

• Law enforcement is investigating the death of a retired US Marine Corps major general in California.
• Maj. Gen. William Mullen’s body was found Saturday at the Marine Corps Air Ground Combat Center.
• Mullen served for 34 years before retiring in 2020 as head of the Training and Education Command.

Law enforcement is investigating the death of a retired major general whose body was found Saturday at that NCIS is investigating the former general’s death. Twentynine Palms is the largest Marine Corps base in the world, according to the installation’s website.

In May, Gunnery Sgt. Robert McDonald, a Marine at the installation, was killed when an 18-year-old fired a weapon into McDonald’s vehicle while he was sitting with his dog at a park just 10 miles south of Twentynine Palms.