A Fake Confession Letter
Strangely enough, she was dropped off a few days later, safe and sound. The man, however, shot himself as soon as the FBI pounded on his door in Portland, Oregon. A year later, a prison inmate in Oklahoma wrote a letter to the Burrs.
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The prisoner claimed that he and a friend of his were picking beans on an Oregon farm when they took Ann Marie. The Burrs gave the letter to the police, and the prisoner was flown to Oregon, and the referenced field was dug up. Nothing was found.