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Case Description

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In the summer of 1976, a quiet disappearance in Marshall, Missouri, marked the beginning of a case that would remain unresolved for decades. On the morning of July 19th, 37-year-old Male Lowen Dean Thomas was last seen at the Marshall State School, a facility where he had been a resident since 1947. Thomas, who was mentally disabled, was described by his family as a shy individual. His disappearance was particularly alarming because, in all his years at the institution, he had never attempted to ...Read More
Last Seen: Jul 19, 1976

Victim Details

Jan 27, 2026

Jan 27, 2026

Lowen

Dean Thomas

37

37

5'6 inches

167 lbs

White

Male

Jul 19, 1976

Marshall

Missouri

Marshall

Marshall Police Departmen

660-886-7411

06/25/2026