Zone 7 with Sheryl McCollum

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 the Gabby Petito case, leave victi...

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 Guthrie case as an example, Suzanna and ...

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 importance of patience, trust, and teamwo...

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 view, complicates what many people...

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 discuss the prosecution's theory of moti...

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 through the investigative failures, why...

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 Derwin Brown.

Dale shares how the stor...

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 night featuring surprise moments, Tri...

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 l...

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 ...

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 vulnerabi...

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 perso...

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...

The LAPD’s most famous cold case, the Black Dahlia, has haunted headlines for generations, and a renewed wave of speculation now argues she was killed by the same person who later called himself the Zodiac.

In this episode of "Zone 7," Sheryl McCollum is joined by forensic pathologist Dr. Priya Banerjee and forensic psychologist Dr. Joni Johnston to put that theory to the test.

They argue Elizabeth Short’s mur...

Human trafficking investigations rarely look like abduction stories, and the biggest failures often start with a single mistake: mislabeling the victim. In this Hall of Fame Series installment of Zone 7, Sheryl McCollum is joined by Maurice Edwards, a 2023 National Law Enforcement Officer Hall of Fame inductee. Together, they clarify what trafficking looks like in the United States, explain why prosecutors and victim...

Nearly four decades after the Colonial Parkway murders first shocked Virginia, new DNA links have expanded the known scope of the case while raising questions about investigative accountability.

In this episode of "Zone 7," Sheryl McCollum is joined by Bill Thomas, whose sister Cathy Thomas was one of the original victims, and Kristin Dilley, his long-time investigative partner and co-host of the podcast, "Mind Over Murde...

In January 1981, during a severe winter storm, Lonene “Lonnie” Rogers disappeared from her home in rural Pennsylvania, leaving behind her children, her car, and no clear explanation for how she could have survived the conditions.

In this episode of Zone 7, Sheryl McCollum speaks with Lonnie’s daughter, Alison Duiker, about the final hours before the disappearance, the instability that followed,...

Just blocks from the White House, a quiet act of service ended in tragedy.

Two young National Guard members were ambushed; one was killed instantly, and another was left in critical condition.

This week on Zone 7, Sheryl McCollum welcomes Dr. Sunny Slaughter to reflect on what happened that day and what it reveals about leadership, language, and the power of restraint.

Together, they explore how hate takes root,...