Couverture de Zone 7 with Sheryl McCollum

Zone 7 with Sheryl McCollum

Zone 7 with Sheryl McCollum

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Work a cold case alongside investigator Sheryl “Mac” McCollum, Director of the Cold Case Investigative Research Institute. Every week, Sheryl dives into her cold case files alongside accomplished guests to look for clues into unsolved murders, missing people, and more. This ain’t just a podcast but a war room. Sheryl opens her cold case files, her heart and her little black book! You will quickly realize Zone 7 is not a place but a lifestyle!

2026 iHeartMedia, Inc. © Any use of this intellectual property for text and data mining or computational analysis including as training material for artificial intelligence systems is strictly prohibited without express written consent from iHeartMedia
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    • Nancy Guthrie Disappearance: Blood Evidence, Surveillance Video, and Why a Ransom Claim is Not Tracking

      Nancy Guthrie Disappearance: Blood Evidence, Surveillance Video, and Why a Ransom Claim is Not Tracking
      Feb 23 2026
      In this Zone 7 special on the disappearance of 84-year-old Nancy Guthrie, Sheryl McCollum and retired NYPD detective Tom Smith break down what a disciplined first 24 hours should have looked like and why the public-facing story has created confusion. They walk through the biggest unanswered questions, including “unknown male DNA, ” the surveillance video, and why a classic ransom scenario is not tracking. For those looking to catch up further as the situation develops, additional coverage and updates can be found on Crime Stories with Nancy Grace. Highlights: • (0:00) Sheryl McCollum welcomes listeners, introduces the Nancy Guthrie case, and brings in Tom Smith for a Day One and Day Two reality check • (1:45) First priority: secure the scene, set the perimeter, and control who comes and goes • (3:15) Two-tape strategy, command center placement, and why media management is part of scene control • (6:45) Why this case should trigger FBI resources quickly, including scale, reach, and operational support • (11:15) Family liaison basics: keeping Savannah Guthrie informed without compromising the investigation • (14:15) Could Savannah be the real target? Why some threats move through family • (15:00) The man's on-camera behavior stands out: clothing, pacing, props, and missing urgency • (16:15) “Ransom” is not tracking. The delays, the non-performance, and why this reads as personal • (21:15) Blood pattern questions that should be treated as a major investigative signal • (23:30) Unknown male DNA. What “unknown” means, why the recovery location matters, and what should have been clarified early • (25:00) Geography, logistics, and why certain theories do not fit the known facts • (27:15) The wagon wheel model. How video, leads, warrants, and tech teams feed one command structure • (28:00) Crime scene control and the importance of limiting access • (34:45) “There are things people need to know. If they don’t need to know it, don’t open your mouth.” • (40:00) Optics blowback. The basketball game controversy and why public trust is an investigative asset. • (46:30) Threat assessment red flags and what should have been screened • (54:00) Two fixes that can sharpen the case now: a clean team review and stronger video enhancement Guest Bio: Tom Smith is a retired NYPD detective and 2024 National Law Enforcement Hall of Fame inductee. Over 30 years of service, he worked in patrol, narcotics and robbery investigations and spent 17 years working with the FBI/NYPD on the Joint T errorism T ask Force, including an overseas deployment to Afghanistan. T om co-hosts the podcast Gold Shields and provides investigative commentary for national media outlets. Enjoying Zone 7? Leave a rating and review where you listen to podcasts. Your feedback helps others find the show and supports the mission to educate, engage, and inspire. 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, including The Boston Strangler, Natalie Holloway, Tupac Shakur and 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: @ColdCaseTips • 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. https://www.simonandschuster.com/books/Swans-Dont-Swim-in-a-Sewer/Sheryl-MacMcCollum/9798895652824See omnystudio.com/listener for privacy information.
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      1 h
    • Long Island Serial Killer | Trial Clock Starts Now: Rex Heuermann Headed to Court

      Long Island Serial Killer | Trial Clock Starts Now: Rex Heuermann Headed to Court
      Feb 18 2026

      When a judge declared that Rex Heuermann’s trial would begin after Labor Day “come hell or high water,” the Long Island Serial Killer case entered a decisive new phase.

      In this episode of Zone 7, Sheryl McCollum is joined by journalist Laura Ingle for a boots-on-the-ground update of the Long Island Serial Killer investigation. They examine the sweeping defense omnibus motion, the ongoing fight over DNA evidence, and what prosecutors are expected to file ahead of the March 3 and March 17 court dates.

      They also analyze the arrest of Andrew Dykes in the 1997 murder of Tanya Jackson, known as “Peaches,” and discuss whether that development introduces meaningful, reasonable doubt for Heuermann’s defense.

      From a recovered planning document to burner phones and questions of who knew what, their conversation centers on evidence, legal strategy, and whether this case is headed for trial or moving toward a plea deal.

      Guest Bio:

      Laura Ingle is an Emmy Award-winning journalist and the host of "The Ingle Edit," a YouTube series and podcast dedicated to re-examining unsolved cases through on-scene reporting and firsthand interviews.

      As a longtime network correspondent, she has covered many of America’s most notorious crime stories and continues to champion cold-case investigations.

      Learn more about the case and view Laura’s on-scene reporting on The Ingle Edit.

      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 four 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: @149zone7

      • 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.

      Highlights:

      • (0:00) Sheryl McCollum welcomes Laura Ingle and introduces the latest developments in the Long Island Serial Killer case

      • (1:00) The Gilgo Beach timeline: from Shannan Gilbert’s 911 call to the initial body discoveries

      • (3:15) Memorial benches along Ocean Parkway and what the geographic landscape reveals about the case

      • (5:00) Rex Heuermann’s January 13 court appearance and the 175+ page defense omnibus motion

      • (8:00) The DNA battle: mitochondrial testing, genetic genealogy, and the hair evidence tied to Sandra Costilla

      • (10:30) Judge’s declaration: trial will begin after Labor Day “come hell or high water”

      • (11:15) Andrew Dykes arrested in the 1997 murder of Tanya Denise Jackson

      (“Peaches”) and what it could mean for the baby

      • (15:45) Why there are still no charges in Tatiana Marie Dykes’ death and why her remains’ proximity to Valerie Mack matters

      • (20:30) Why separate mother and child: DNA, dumping-ground logic, and what investigators still cannot place in the timeline

      • (22:15) Devices, weapons, and the locked vault: what investigators found and what’s still unknown

      • (24:15) The house and the basement: searches, “workshop” claims, and the importance of the location

      • (25:00) Planning document and surveillance awareness: traffic cameras, tactics, and intent

      • (28:15) The “window” theory: family travel timeline and why prosecutors say they line up

      • (29:15) Asa and the divorce question: blindsided or strategic?

      • (31:30) How the defense uses the “Peaches” arrest to argue reasonable doubt

      • (34:00) Outro: The Ingle Edit and Sheryl’s closing quote

      See omnystudio.com/listener for privacy information.
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      35 min
    • Nancy Guthrie Missing: Blood, Bitcoin, and a Story That Doesn’t Add Up

      Nancy Guthrie Missing: Blood, Bitcoin, and a Story That Doesn’t Add Up
      Feb 10 2026
      When 84-year-old Nancy Guthrie disappeared from her home, investigators were quickly faced with blood evidence and ransom claims that did not align with standard abduction patterns. In this episode of "Zone 7," Sheryl McCollum, retired NYPD homicide detectives Dan Murphy and Tom Smith, and forensic pathologist Dr. Priya Banerjee assess why blood at the scene, a prolonged presence inside the home, and Nancy’s medical vulnerabilities undermine the ransom narrative. The panel also examines investigative decisions and evidence handling that may shape accountability. For those looking to stay informed as the situation develops, additional coverage and updates can be found on "Crime Stories with Nancy Grace." Enjoying "Zone 7"? Leave a rating and review where you listen to podcasts. Your feedback helps others find the show and supports the mission to educate, engage, and inspire. Guest Bios Dr. Priya Banerjee is a board-certified forensic pathologist with extensive experience in death investigation, clinical forensics, and courtroom testimony. A graduate of Johns Hopkins, she served for over a decade as Rhode Island’s state medical examiner and now runs a private forensic pathology practice. Dan Murphy is a retired NYPD Detective-Sergeant with extensive experience in homicide, major case investigations, and counterterrorism. During his career, he served in units including the Major Case Squad and the FBI/NYPD Joint Terrorism Task Force. Since retiring from law enforcement, Dan has served as Chief Security officer for U.S. Bancorp, co-authored, "Workplace Safety: Establishing an Effective Violence Prevention Program," and co-hosts the podcast, "Gold Shields." Tom Smith is a retired NYPD detective and 2024 National Law Enforcement Hall of Fame inductee. Over 30 years of service, he worked in patrol, narcotics, and robbery investigations and spent 17 years working with the FBI/NYPD on the Joint Terrorism Task Force, including an overseas deployment to Afghanistan. Tom co-hosts the podcast "Gold Shields," lectures on criminal justice and terrorism, 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, including The Boston Strangler, Natalie Holloway, Tupac Shakur, and 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: @149Zone7 • 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. Highlights: • (0:00) Sheryl McCollum welcomes listeners, introduces the Nancy Guthrie case, and brings in Dan Murphy, Tom Smith, and Dr. Priya Banerjee • (1:30) Savannah Guthrie’s early silence and why not using her platform immediately raised concern • (2:15) Blood at the scene, smashed cameras, and why this should have been treated as an abduction from the start • (4:15) Interior crime scenes, early release, and how evidence integrity can be compromised • (4:45) Dr. Priya Banerjee on age, blood thinners, cardiac disease, and stress-related death • (7:15) The 41-minute timeline inside the home and why it defies kidnapping patterns • (8:30) Delayed ransom demands, media involvement, and why the timing doesn’t track • (12:15) Lights left on inside the house and behavior inconsistent with covert abduction • (13:30) Bitcoin ransom logic and why mixed-payment demands raise red flags • (14:15) A robbery-gone-wrong scenario and what happens if the victim recognizes the offenders • (16:15) Chronic pain, medication dependency, and why prolonged captivity is medically unlikely • (19:00) Family video statements, proof-of-life questions, and linguistics shifts investigators notice • (21:00) Reactionary law enforcement activity and repeated returns to the scene • (24:30) Pacemakers, Apple Watch connectivity, and what technology may still reveal • (28:30) Leadership optics, media interference, and the impact of active investigations • (36:45) Reward amounts, chain of custody concerns, and courtroom implications • (41:30) Final thoughts from the panel on recovery efforts, investigative outlook, accountability, and why Sheryl believes it was never about the money https://www.simonandschuster.com/books/Swans-Dont-Swim-in-a-Sewer/Sheryl-Mac-McCollum/9798895652824 See ...
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      50 min
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