THURSTON COUNTY, Wash. — The body of an 82-year-old woman reported missing under "suspicious circumstances" in Tenino has been found.

The Thurston County Sheriff’s Office said Marcia Norman’s body was found buried underneath a new shed in Olympia and was “partially encased in concrete.”

Norman was reported missing on April 4 after her family said they had not heard from her since around 6:30 p.m. on April 1. Both of her vehicles were also found parked at her home.

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During the investigation, detectives with the Thurston County Sheriff’s Office identified Norman’s handyman, Jeffrey Zizz, as a person of interest after learning he had dinner with her on the evening of April 1.

The sheriff’s office said Zizz fled the state, which violated a previous sentencing condition on an unrelated sex offense. He was taken into custody at a motel in Missoula, Montana, on an unrelated charge.

During the investigation, detectives discovered Zizz had built a shed at an “unrelated property” in Olympia on the day Norman was reported missing. Investigators obtained equipment to move the shed on April 9 and found human remains “partially encased in concrete” while excavating the ground below where the new shed had been built.

The Thurston County Coroner’s Office confirmed the remains discovered were Norman on April 10.

Investigators traveled to Missoula on April 13 and extradited Zizz to Washington state. The sheriff’s office said he is currently being held in Thurston County jail on a no-bail hold on a child molestation sentencing violation while investigators continue gathering evidence.

The sheriff’s office said Zizz remains a person of interest in the case and that detectives “are continuing to work closely with both the Thurston County Prosecutor’s and Coroner’s Offices.