Butterfield is suspected of shooting and suffocating 21-year-old Rebekah Butterfield in San Clemente in 2006, then wrapping the body in plastic bags and stuffing it in the freezer of his recreational vehicle.
The vehicle was impounded after Butterfield was arrested on a charge of obstructing a police officer.
Two impound yard employees found the body in October 2008.
The Orange County District Attorney's Office says Butterfield faces charges of special circumstances murder with torture and assault with a firearm.
Butterfield could face the death penalty .
The Orange County Register and Associated Press contributed to this report.
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