The Disappearance
13-year-old Mary Day went missing in 1981.
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What Ever Happened to Mary Day?
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The Investigation
More than 20 years after her disappearance, investigators suspected Mary had been murdered.
2The Suspects
The investigation focused on Mary's mother and stepfather, who had never filed a missing persons report.
2Case Developments
The case took a significant turn as investigators closed in on the truth.
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“What was the significant turn in the Mary Day case?”
“Why did investigators suspect the mother and stepfather?”
“How long did it take for the murder suspicion to arise?”
Questions
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Experts
Voices named in the source.
Maureen Maher
Correspondent
3Sources and disclosure
Where this guide comes from.
This classic '48 Hours' episode last aired on 12/23/2023.
- Publisher show notes
13-year-old Mary Day disappeared in 1981.
- Publisher show notes
More than 20 years later, investigators suspected she’d been murdered, and focused on Mary’s mother and stepfather, who had never filed a missing persons report.
- Publisher show notes
But just as investigators seemed to be closing in on the truth, the case would take a shocking turn. "48 Hours" correspondent Maureen Maher reports.
- Publisher show notes
This classic "48 Hours" episode last aired on 12/23/2023.
- Publisher show notes
Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.
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