CONNECT with Jonathan Mark

International Cases, Big Changes, and What's Next

After another incredible year, Jonathan takes a moment to reflect on the impact of the show, thank listeners for their continued support, and share what's next for the sh

The Vanishing of Thomas Riotte: Inside the Investigation

This episode is part of our International Cold Case Series, where we work alongside families, investigators, and law enforcement around the world in the search for answer

The Mysterious Death of Ivan in Denmark: Murder or Accident?

In this installment of our international cold case series, Jonathan connects with Michella, a woman who has spent more than 20 years searching for answers surrounding the

No Clues, No Context, No Warning: The William Billy Brown Investigation

In this deeply personal episode, Jonathan Mark takes listeners behind the scenes of one of the most intense cases he’s ever worked on, the investigation of William “Billy

Closing the Long Island Serial Killer Case: Final Answers & A Shocking Family Mystery

In this powerful episode, Jonathan sits down with Kate Casey to unpack the latest and possibly final developments in the Long Island Serial Killer case, a case Jonathan h

The Family That Vanished: The Jack Family Mystery

On August 2, 1989, the Jack family vanished without a trace along a remote road near Prince George, Canada. What began as a seemingly harmless job offer quickly turned in

Into the Wilderness: The Disappearance That Changed Everything

In this powerful and intimate conversation, Jonathan sits down with Linda Salek, who shares the haunting story of her brother’s disappearance decades ago in a remote wood

Taken in the Night: The Mystery of Kim Moreau

In this episode, we return to an unsolved missing persons case that has haunted a small Maine community for decades. In 1986, 17 year old Kim Moreau vanished from Jay, Ma

A Conversation With Melissa: Love After Loss

This week’s episode was one of the most heartfelt conversations we’ve ever shared. I sat down with Melissa, who recently lost her husband, for a deeply emotional and powe

The Unsolved Case of Millie Windham

This week’s episode features yet another intense and emotional conversation.  Marie joins to share the story of her mother, who died under circumstances that were ruled

Land Between the Lakes: New Details, Same Unanswered Questions with Amelia Courtney

In this episode, Jonathan is joined again by Amelia for a sensitive and highly anticipated update in the case of Vickie Stout and Carla Atkins. Listeners have been asking

New Validation, New Evidence, and a Case Moving Forward: A Break in the Carla Atkins and Vickie Stout Case

This episode shares a meaningful update in the case involving Carla Atkins and Vickie Stout, two half-sisters who disappeared in Tennessee in 1980 and were later found mu

Inside the Process: How Law Enforcement and Families Work With a Medium

This episode pulls back the curtain on what actually happens behind the scenes when a case comes in.  Rather than focusing on a single investigation, this conversation w

Unsolved Cases That Still Haunt Us with Kate Casey

Unsolved cases have a way of sticking with you, long after the details fade.  In this episode, Kate Casey joins the conversation to unpack three haunting disappearances

A Mother’s Connection: Messages from Ryan’s Spirit (Replay)

As we revisit this powerful conversation from Season 1, Jonathan shares a deeply moving session with Janice, a mother who lost her son, Ryan. In this episode, Jonathan co

Inside the Daily Mail Reading: The Lost Boys of Pickering

In this solo episode, Jonathan opens up about the last few weeks, the overwhelming support he’s received, and why he’s more motivated than ever as he prepares for Season

Ode To My Uncle

In this deeply personal episode Jonathan steps away from his usual work with unsolved cases and missing persons to honor someone who meant everything to him. After the re

Poison in Paradise: The Death of Candice’s Brother

Today Jonathan speaks with Candice O’Brien about the mysterious death of her brother while on vacation in the Dominican Republic. What begins as a heartbreaking story of

Kate Casey Returns with Two Cases that Haunt Investigators

Today we welcome back Kate Casey once again as she brings two new unsolved cases to the table. They walk through the brutal 2010 murder of Julie Mitchell, a mother of fou

20 Stab Wounds: The Mystery of Ellen Greenberg

In this episode, Jonathan revisits one of the most debated death investigations in recent years — the case of Ellen Greenberg, a 27 year old Philadelphia school teacher f