10 chilling true crime cases that still remain unsolved

The murder of the Boy in the Box, AKA Joseph Augustus Zarelli

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The murders of Russell and Shirley Dermond

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The Chicago Tylenol murders

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The disappearance of Brian Shaffer

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The disappearance of Madeleine McCann

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The disappearance of Johnny Gosch

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The murder of the Black Dahlia, AKA Elizabeth Short

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The killing of JonBenét Ramsey

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The mystery of Mr. Cruel

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The mystery of the Zodiac Killer

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