iHeartPodcasts and CrimeOnline

Zone 7 with Sheryl McCollum

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!

Author

iHeartPodcasts and CrimeOnline

Category

True Crime

Podcast website

www.iheart.com

Latest episode

Jul 8, 2026

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Episodes

Vice, Vegas, and Deep Cover: Jenn Benjamins on What It Takes to Work Undercover 08.07.2026

In this episode of Zone 7 , Sheryl McCollum is joined by retired Las Vegas Police Sergeant Jenn Benjamins for a look inside undercover police work. Jenn explains what separates basic surveillance from true deep cover, where officers must build believable identities, speak the language of the street, and think fast enough to avoid being “made.” She discusses prostitution&...

The Cape Cod Serial Rapist and the Survivor Who Helped Catch Him 01.07.2026

In this episode of Zone 7 , Sheryl McCollum is joined by retired Police Chief Frank Frederickson and Michelle Linn for a case that began with a violent 1988 Cape Cod assault and, years later, became something neither of them could have imagined. Frederickson, then a newly assigned detective, recalls a summer of escalating attacks across Hyannis and Barnstable, Massachusetts, an...

Stevie Bates Cold Case Review: Deleted Messages, Three Crime Scenes, and Who’s Still Not Talking 24.06.2026

In this follow-up episode of Zone 7 , Sheryl McCollum is joined by retired NYPD detectives Tom Smith and Dan Murphy of Gold Shields to take an investigative look at the unresolved case of Stevie Bates. After revisiting Stevie’s 2012 disappearance and the 2020 discovery of her remains in Glendale, Queens, Sheryl, Tom, and Dan discuss the key questions that remain. They exa...

Barrel Racing Horse Stabbing Case: The Evidence, the Suspect, and the Fallout 17.06.2026

In this episode of Zone 7 , Sheryl McCollum is joined by Caroline McCollum and Huck McCollum to talk about the case involving three horses who were stabbed during a barrel racing event at South Point Casino in Las Vegas. Caroline, a longtime horse rider and criminology student, shares her perspective on what it means to compete with and care for these animals, and how the open,...

Law Enforcement in the Wilds | Ed Newcomer & Tony Latham 10.06.2026

In this episode of Zone 7 , Sheryl McCollum is joined by former U.S. Fish and Wildlife Service special agent Ed Newcomer and retired Idaho Fish and Game conservation officer Tony Latham for a look at the danger, isolation, and critical work of wildlife law enforcement. They discuss the murders of Idaho game warden Bill Pogue and Conley Elms by Claude Dallas, the cold case of Ar...

Stevie Bates Made It Back to New York. Then She Vanished 03.06.2026

In 2012, 19-year-old Stevie Bates vanished after calling her mother from a Greyhound bus during a layover in Pittsburgh; she made it back to New York but never made it home. Eight years later, her skeletal remains were discovered wrapped in a blanket at an abandoned house in Queens, the same property where her boyfriend had reportedly been squatting. In this episode of Zone 7 ,...

Diane Whipple Case: The Fatal Dog Mauling That Changed California Law 27.05.2026

Bestselling true crime author and investigative journalist Aphrodite Jones returns to Zone 7 with Sheryl McCollum to discuss her book Dog O’ War and the fatal 2001 dog mauling of Diane Whipple in San Francisco. Drawing on her extensive reporting on the case, Aphrodite details the connections to the Aryan Brotherhood, the Presa Canario dogs Bane and Hera, and the attorneys...

The Heart Behind the Badge: Eric McCants on Leadership and Service 20.05.2026

In this week’s episode of Zone 7, Sergeant Eric McCants joins Sheryl McCollum to talk about leadership, community policing, and the mindset required to serve well in high-pressure environments. He discusses the importance of communication, building community trust, getting out of the patrol car, and knowing the people you serve before a crisis ever happens. Eric also addr...

Ashley Willcott on Child Advocacy, Courtroom Transparency, and Honoring Captain Dr. Duanne Thompson 13.05.2026

In this week’s episode of Zone 7, Sheryl McCollum is joined by former judge, legal analyst, and former Court TV anchor Ashley Willcott to discuss her decades-long career advocating for children in the legal system, her transition from the bench to television, and her new microformat focusing on fast, fact-based case analysis. Sheryl and Ashley also reflect on cases they have&n...

Nancy Guthrie Case: We Need to Start Fresh 06.05.2026

In this week’s episode of Zone 7, more than three months after Nancy Guthrie vanished, Sheryl McCollum returns to the case with one central question: what does the evidence actually prove? From the masked suspect’s behavior on camera to the blood patterns at the front door and the complete absence of credible ransom activity, she argues that the scene shows signs of stag...

Matt Johnson's Courtroom Coverage: A Look at America's Most Complex Criminal Trials 29.04.2026

In this week’s episode of Zone 7, Sheryl McCollum talks to Court TV correspondent Matt Johnson about what it takes to cover high-profile criminal cases and trials, from the Lori Vallow Daybell case and Rex Heuermann to Karen Read and the Delphi murders. Matt explains how deadlines, jury reactions, and the pressure of live television shape the way he turns hours of courtro...

When Two Investigators’ Paths Cross: Olympic Park Bombing, 9/11, and the Power of Public Tips 22.04.2026

In this week’s episode of Zone 7, Sheryl McCollum talks with retired FBI special agent Jodene Weber about the parallels in their careers and the many times their paths nearly crossed before they officially met. Jodene reflects on the cases that shaped her years in the FBI, from piecing together the timeline of the Olympic Park bombing through crowd photographs to processing&nb...

Legend Series: Julie Grant on Prosecution, Victims’ Rights, and Justice 15.04.2026

In this week’s episode of Zone 7, Sheryl McCollum welcomes Julie Grant for a special Legend Series conversation about her path from journalism to the courtroom and the commitment to justice that drives her today. As a former prosecutor and Court TV host, Julie discusses her advocacy for domestic violence survivors, explaining how systemic failures, including those seen in...

DNA 101: Understanding Forensic DNA Evidence with Lab Director Suzanna Ryan 08.04.2026

In this week’s episode of Zone 7, Sheryl McCollum talks with forensic DNA expert Suzanna Ryan about how powerful DNA evidence can be and why it is so often misunderstood. They discuss how DNA is analyzed, how touch DNA and mixtures can complicate a case, and how newer tools like genetic genealogy and next-generation sequencing are changing the field. Using the Nancy Guthr...

The Art of Listening: Detective Mike Alcazar on Hostage Negotiation 01.04.2026

In this week’s episode of "Zone 7," retired NYPD detective Mike Alcazar joins Sheryl McCollum to talk about what hostage negotiation looks like when a scene is tense, the stakes are high, and one wrong move can change everything. Drawing on decades in law enforcement, Mike discusses the Nancy Guthrie case, explains how negotiators read people in real time, and highlights the import...

Inside the Boston Strangler Case: Casey Sherman on Mary Sullivan, Albert DeSalvo, and What Still Does Not Add Up 25.03.2026

In this week’s episode of "Zone 7 ," Sheryl McCollum talks with author and investigative reporter Casey Sherman about the murder of his aunt, Mary Sullivan, long believed to be the final victim of the Boston Strangler, and the lasting impact her murder had on his family. Casey explains why his family has long questioned the official story, pointing to evidence that, in his vie...

Inside the Case Against Kouri Richins: Nate Eaton on the Evidence Behind the Guilty Verdict 18.03.2026

After weeks of testimony and a defense case that ended without a single witness, the jury in the Kouri Richins trial returned a guilty verdict in the death of Eric Richins. In this week’s episode of Zone 7, Sheryl McCollum talks with investigative reporter Nate Eaton, who has been in court following the testimony, key witnesses, and the evidence surrounding Eric's death. Together, they discu...

The Nancy Guthrie Investigation: Joe Giacalone on Early Errors and What Should Happen Next 11.03.2026

When an 84-year-old woman vanishes from her home in the middle of the night, leaving behind signs of blood and a struggle, every early decision investigators make is critical. Retired NYPD sergeant Joe Giacalone returns to Zone 7 to talk with Sheryl McCollum about the Nancy Guthrie investigation and the mistakes they believe set the case back from the start. Together, they walk thro...

The Derwin Brown Assassination: Dale Cardwell on Corruption, Retaliation, and Murder in DeKalb County 04.03.2026

A late-night stop at a Dairy Queen led to one of the biggest stories of Dale Cardwell’s career. In this episode of "Zone 7," Sheryl McCollum talks with Dale about the investigation that uncovered corruption inside the DeKalb County Sheriff’s Office, exposed deputies working on the clock for Sidney Dorsey, and helped fuel a political shakeup that ended in the murder of Sheriff-elect Der...

Crime Roundup: Inside the Zone 7 Live 10-8 Event at Manuel’s Tavern, and the 10-8 Tour Roadmap 27.02.2026

This episode of Zone 7’s Crime Roundup captures the energy of the first stop on Sheryl McCollum’s 10-8 Tour: a packed house, a hot mic, and the kind of stories you only get when prosecutors, defense attorneys, detectives, and crime-scene folks are all sitting at the same table. With Joshua Schiffer and Franz Borghardt alongside her, Sheryl recaps an unforgettable ni...

Nancy Guthrie Disappearance: Blood Evidence, Surveillance Video, and Why a Ransom Claim is Not Tracking 23.02.2026

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 s...

Long Island Serial Killer | Trial Clock Starts Now: Rex Heuermann Headed to Court 18.02.2026

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 m...

Nancy Guthrie Missing: Blood, Bitcoin, and a Story That Doesn’t Add Up 10.02.2026

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,...

A Missing Teen and a High-Profile Arrest: The Evidence, Silence, and Selective Claims with Guest Lauren Conlin 04.02.2026

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...

Louvre Royal Jewels Heist: How Thieves Pulled Off an Eight-Minute Museum Hit 28.01.2026

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 c...

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