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In page Greenbrier Ghost:

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Armed with the story allegedly told to her by the ghost, Mary Jane Heaster visited the local prosecutor, John Alfred Preston, and spent several hours in his office convincing him to reopen the matter of her daughter's death. Whether he believed her story of the ghost is unknown, but he did have enough doubt to dispatch deputies to reinterview several people of interest in the case, including Dr. Knapp. He was likely responding to public sentiment, as numerous locals had begun suggesting that Zona had been murdered.[citation needed]