Case Description from North Dakota Bureau of criminal investigation Robert Michael Anderson
On August 26, 1993, 32 year old Robert Michael Anderson was reported missing. Anderson was in the company of his 30 year old girlfriend, Kristin Joy Diede. Anderson and Diede had taken Diede’s two children to visit relatives in Wishek, North Dakota. Anderson and Diede were last seen on August 15, 1993, in Wishek. On August 20, 1993, a Dodge van being driven by Anderson and Diede was found abandoned in Aberdeen, South Dakota. It is believed Anderson and Diede were homicide victims.
Anyone having information regarding the disappearance of Robert Anderson or Kristin Diede is asked to contact the Logan County Sheriff’s Department at 701-754-2495, or the North Dakota Bureau of Criminal Investigation at 1-800-472-2185 or 701-328-5500.