Zone 7 with Sheryl McCollum

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."
Guest Bio:
Tom Smith is a retired NYPD detective and 2024 National Law Enforcement Hall of Fame inductee. With 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," 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: [email protected]
• 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.
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.
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


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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: [email protected]
• 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


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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: [email protected]
• 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


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An active investigation into the death of 14-year-old Celeste Rivas Hernandez has left the public with a timeline, a Tesla, and an extensive list of unanswered questions.
In this episode of "Zone 7," Sheryl McCollum is joined by journalist Lauren Conlin to review what has been said publicly about Celeste’s initial classification as a runaway, her connections to older individuals, and why the continued absence of a named person of interest raises concern.
They also turn to the arrest of actor/director Timothy Busfield and discuss what can and cannot be concluded from selective “evidence” releases, how credibility gets weaponized in public, and why child abuse allegations demand careful, methodical evaluation rather than internet verdicts.
Guest Bio
Lauren Conlin is a New York-based journalist covering true crime and high-profile investigations. She contributes reporting to Los Angeles Magazine, hosts investigative podcasts, and appears as a legal and crime commentator on platforms including Court TV, Fox News, and "Crime Stories with Nancy Grace."
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 includes, in part, the Boston Strangler, Natalie Holloway, 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: [email protected]
• 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.
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.
Highlights:
• (0:00) Sheryl McCollum opens the episode on the death of Celeste Hernandez and why the case is “driving her crazy”
• (1:30) Lauren Conlin’s case status framing: no official person of interest, grand jury activity, and what “imminent indictment” does and does not mean
• (3:00) Celeste’s runaway classification, age, and how early labels can shape urgency, resources, and risk
• (7:15) Behavior after the discovery: canceled tour, transferred home ownership, legal strategy, and public silence

• (10:00) Publicity economics: spikes in streams/downloads and the reality of scandal- driven attention
• (15:15) Homicide indicator vs. Evidentiary barriers when decomposition complicates cause-of-death determinations
• (17:45) Tesla cameras, event data, and why Sheryl expects a digital trail around movement and access
• (21:45) Why runaway youth are at elevated risk and how dependency becomes leverage for exploitation
• (27:00) Timothy Busfield: prior allegations and the optics of how he presented himself
• (29:15) The alleged history patterns, witness context, and credibility disputes around the parents
• (33:00) “Tickling to me does not absolve you from being a pervert.”
• (36:00) Predatory access: why being near adults does not guarantee safety and how abuse can occur quickly and covertly
• (39:15) Sheryl and Lauren address recantation, selective interview clips, and why child abuse cases require restraint, context, and patience before judgment

See omnystudio.com/listener for privacy information.

In broad daylight on October 19, 2025, thieves dressed as construction workers targeted the Louvre and vanished with $100 million in royal jewels in about eight minutes.
In this episode of "Zone 7," Sheryl McCollum is joined by former jewel thief Bryan Sobolewski to lay out exactly how a heist like this gets pulled off, what mistakes crews make when the clock is ticking, and why modern forensics can turn a “perfect” job into an evidence trail.
Sobolewski then shares his own history, the losses, and long-term consequences, and why he now speaks publicly to warn others away from choosing a life of crime.
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 Bio:
Bryan Sobolewski is a former jewel thief who speaks publicly about robbery methods, prevention, and the real-world consequences of criminal conviction. He has appeared on Fox's reality series "The Snake," and on "America's Most Wanted."
Sobolewski is also a comedian and personal trainer, and previously hosted the "Family Jewels" podcast and authored the book "Family Jewels."
About the Host
Sheryl “Mac” McCollum is an active crime scene investigator for the 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, including The Boston Strangler, Natalie Holloway, 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: [email protected]
• X: @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 recounts the Louvre entry point, the freight truck with extended ladder, missing jewels, and why “construction work” is the perfect disguise in a crowded tourist environment
• (2:45) Sheryl brings in former jewel thief Bryan Sobolewski to talk about the heist
• (4:45) The ladder truck problem: sourcing it, driving it, and the traceability thieves cannot erase
• (7:15) The moped getaway and why Paris geography favors two wheels
• (8:15) Uninsured jewels and what security should have anticipated
• (10:00) How fast cases move when the thieves leave obvious evidence behind
• (12:15) Flight attempts, the hired-crew theory, and how the organizer can remain invisible
• (16:15) DNA, fingerprints, and trace evidence
• (19:15) The gear left behind and why serial numbers and rentals make a heist crew traceable
• (24:00) Bryan’s New England backdrop, mob proximity, and “street rules”
• (27:45) Bryan recounts his father and brother dying on the same night and the questions he is left to live with
• (30:15) Why display cases are harder to break than people think, and how reinforced glass slows thieves down
• (40:30) Bryan reflects on the long-term cost of crime, what accountability looks like after prison,



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