Human Remains in Lewis County Identified as 1986 Cold Case

The human remains found near Mineral on Saturday, March 26, 2011, have been positively identified as Michael Lloyd Riemer.  Riemer was originally reported as a missing person in December of 1985 to the Pierce County Sheriff’s Department. Riemer was missing along with his significant other, Diana Robertson, also from Pierce County.

Their two year old daughter was found wandering alone at a Spanaway K-Mart on the same day Riemer and Robertson went missing.

Riemer was 36 years old at the time of his disappearance. Robertson was 21 at the time of her disappearance.

Robertson’s remains were found February of 1986 on an abandoned logging road north of Mineral. Riemer’s remains were located within a mile of where Robertson’s remains had been previously located.

During 1986 there were several attempts to find Riemer through numerous Search and Rescue missions.

 

Information on the case aired on the television show Unsolved Mysteries in 1989 and generated numerous tips over the years as to the whereabouts of Riemer. Riemer was a person of interest in the death of Robertson as he had not been located after Robertson’s body was found and his whereabouts were still unknown.

Detectives with the Lewis County Sheriff’s Office have notified Pierce County Sheriff’s Department of the identification of Riemer and a joint investigation continues.

If anyone has any information about this case, please call the Lewis County Sheriff’s Office at (360) 748-9286 or Crime Stoppers 1-800-748-6422.

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