Murdered Ohio woman Janice Hartman's case key to solving mystery on 'Dateline'

(NBC News) — On Friday’s all-new two-hour “Dateline,” when New Jersey woman, Betty “Fran” Gladden-Smith, goes missing, investigators uncover her husband’s chilling history, including dark secrets about another missing wife, Janice Hartman from Ohio. Would John Smith be caught before he put another woman in danger? Here is a preview of Andrea Canning’s report: There […]

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