Breaking news: Partial skull identified as Pierce County man missing since 1985

By Sharyn  L. Decker
Lewis County Sirens news reporter

CHEHALIS  – The partial skull found by a hiker near Mineral has been identified as belonging to a man who went missing from Pierce County more than 25 years ago.

Michael Lloyd Riemer was 36 years old when both he and his significant other, 21-year-old Diana K. Robertson were reported missing, according to the Lewis County Sheriff’s Office.

Their 2-year-old daughter was found wandering alone at a K-Mart in Spanaway on the day the pair went missing in December 1985, according to Chief Deputy Stacy Brown.

Robertson’s remains were found in February 1986 on an abandoned logging road north of Mineral, according to Brown. Reimer’s remains –  found on March 26 in a wooded area- were located within a mile of where Robertson had been found, according to Brown.

Riemer was a person of interest in Robertson’s death as he hadn’t been located after her body was found, Brown reported.

Information on the case was aired on the television show Unsolved Mysteries in 1989 and generated numerous tips over the years, according to Brown.

When the Lewis County Sheriff’s office reported the discovery two weeks ago, detectives and dogs searched the area and did find evidence, or potential evidence in the area.

A joint investigation with the Pierce County Sheriff’s Department continues, according to Brown.

Brown asks anyone with information about the case to call the Lewis County Sheriff’s Office at 360-748-9286 or Lewis County Crime Stoppers at 1-800- 748-6422.

More to come

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