Sheldon T. Plummer, 28, is scheduled to make his first appearance in Thurston County Superior Court this afternoon.
Deputies arrested Plummer on Friday and he was booked into the Thurston County Jail on suspicion of second-degree murder.
The victim was identified as Winter Plummer. 27. The couple has a 2-year-old daughter.
The sheriffs office began its investigation April 18 after one of Plummers friends, also a soldier, told deputies that Plummer had asked him about the best way to dispose of a body, investigators have said.
Plummer initially told investigators that his wife had left him. Investigators became suspicious because her vehicle was still parked in their driveway and her family in Arizona said they had not seen or heard from her. Plummer did not file a missing person report.
Plummer confessed to killing his wife Friday after several interviews with detectives. Deputies found the body stuffed into a plastic storage container in the mans garage in the 9200 block of Skokomish Way east of Lacey.
After strangling her, according to court records, Plummer placed her body in a large storage box and transported it to a storage unit. He moved the box into his garage after authorities contacted him April 18.
The Thurston County Coroners Office is scheduled to perform an autopsy today.
Plummer deployed to Iraq three times, twice with a signals battalion assigned to the joint base, the Army said. He returned from his most recent deployment in August 2009. He was trained as a communications systems operator.
