Kristin Diede and Bob Anderson drove from Minnesota to North Dakota on a weekend in August 1993, then vanished, with a key piece of evidence later turning up in South Dakota. Authorities believe they were murdered. James Wolner and Jeremy Fugleberg look into this mysterious disappearance and the heartache left in its wake on this season of the "Dakota Spotlight" podcast, "Vanishing Act: The Untold Story of Kristin Joy Diede and Bob Anderson."

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Bob Anderson, pictured in a missing poster created by friends after he went missing in August 1993.
Submitted photo

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Kristin Diede, who went missing on Aug. 15, 1993, is pictured here on a missing poster later placed around town by friends in Bloomington, Minnesota
Contributed photo

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Wes Meidinger, in his days as a trooper in the North Dakota Highway Patrol.
Submitted photo

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The Wishek Badger welcomes visitors to town in south-central North Dakota. Bob and Kristin visited a state trooper there on the day they were last seen alive.
James Wolner / Forum News Service