Episode 10 shifts from facts to theories in the unsolved 1993 disappearance of Kristin Joy Diede and Robert Michael “Bob” Anderson. Four working theories about what may have happened are presented to retired North Dakota homicide detective Bob Haas, who hears the case details in depth for the first time. Haas weighs in on which explanations he finds most plausible and why, decades later, nobody has been arrested or charged. This pivotal episode of Vanishing Act examines the possibilities behind one of North Dakota’s most enduring mysteries.

If you know what happened to Kristin and Bob or have information for law enforcement, call the Logan County, ND Sheriff’s Office: (701) 754-2495.

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