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In a compelling episode of “Zone 7,” Sheryl McCollum and retired NYPD detective Tom Smith delve into the perplexing case of Nancy Guthrie, the 84-year-old who has mysteriously vanished. They offer insights into how the critical first 24 hours of the investigation should have unfolded and explore why the narrative presented to the public has led to widespread confusion.
The episode dissects several key unanswered questions surrounding the case, such as the presence of unidentified male DNA, the significance of surveillance footage, and why the scenario does not fit the mold of a typical ransom case.
For those eager to stay updated as the story progresses, further developments and detailed analysis are available on “Crime Stories with Nancy Grace.”
About the Guest:
Tom Smith is a distinguished retired NYPD detective, soon to be honored as a 2024 National Law Enforcement Hall of Fame inductee. With more than three decades of experience, Tom has served in various capacities, including patrol, narcotics, and robbery investigations. Notably, he dedicated 17 years to the FBI/NYPD Joint Terrorism Task Force, with an overseas assignment in Afghanistan.
Tom co-hosts the podcast, “Gold Shields,” and provides investigative commentary for national media outlets.
About the Host
Sheryl “Mac” McCollum is an active crime scene investigator for a Metro Atlanta Police Department and the director of the Cold Case Investigative Research Institute, which partners with colleges and universities nationwide. With more than 4 decades of experience, she has worked on thousands of cold cases using her investigative system, The Last 24/361, which integrates evidence, media, and advanced forensic testing.
Her work on high-profile cases include The Boston Strangler, Natalie Holloway, and Tupac Shakur. Her work on the Moore’s Ford Bridge lynching led to her Emmy Award for “CSI: Atlanta” and induction into the National Law Enforcement Hall of Fame in 2023.
Social Links:
• Email: coldcase2004@gmail.com
• Twitter: @zone7squad
• Facebook: @sheryl.mccollum
• Instagram: @officialzone7podcast
Preorder Sheryl’s upcoming book, “Swans Don’t Swim in a Sewer: Lessons in Life,Justice, and Joy from a Forensic Scientist,” releasing May 2026 from Simon and Schuster.
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[Feature Photo: Nancy Guthrie/Instagram]