What happens when the justice system gets it catastrophically wrong? Neil Mercer has spent over five decades as a journalist unafraid of the hard stories, as evidenced in his latest book Falsely Convicted. 

In this episode, Neil joins Gary to unpack two of Australia's most shocking miscarriages of justice. First, the wrongful conviction of schoolteacher Josephine Greensill, whose life was torn apart by allegations from two former students dredged up from three decades earlier. Then, the case of Andrew Mallard, who was wrongfully convicted for the 1994 murder of Perth shopkeeper Pamela Lawrence. Gary also shares a confronting personal account from his early career as a detective, illustrating how difficult it can be to halt the "machinery of the justice system" once it's in motion, even when doubts about guilt begin to surface.

Neil Mercer is the author of Falsely Convicted: True Stories of Injustice in Australia. 

Want to hear more from Neil Mercer? Listen to his other interviews with Gary on I Catch Killers here and here. 

You can watch I Catch Killers on Youtube here. 

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In the gripping second part of Gary Jubelin’s conversation with former undercover operative Todd Maguire, the stakes reach a breaking point. Todd delves deeper into the psychological toll of maintaining multiple false identities, where the line between his real self and his undercover personas began to dangerously blur.

From terrifying rural setups involving illegal firearms and rust-covered blades to the high-stakes world of city underbelly operations, Todd reveals the raw reality of life in the field. He shares the harrowing moment he truly thought his cover was blown and how a reckless descent into alcohol and substance abuse became his only way to cope with the trauma he couldn't process.

Gary and Todd also discuss the profound personal cost of the job, the "tick and flick" approach to officer welfare, and the life-changing wakeup call that finally forced Todd to confront the train wreck his life had become.

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At just 25 years of age, Queensland police officer Todd Maguire woke up to discover the love of his life had taken her own life. Shattered and searching for a way to escape the pain, Todd threw himself into the dangerous world of undercover policing, and became someone else entirely.

Enter Donny: reckless, fearless, and fully immersed in a criminal underworld of drugs, violence, and volatility, where one wrong word or one wrong look could get you killed.  

In this episode of I Catch Killers, Gary Jubelin sits down with Todd to unpack a story of profound loss, reinvention, and survival. Todd opens up about the moment he found his partner's body, the brutal reality of life undercover, and how deeply he lost himself in his alter ego.

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In this continuation of their deep dive, Gary Jubelin speaks with former Western Australian police diver Luke McCulloch about the harrowing reality of underwater investigations. Luke details the psychological and physical demands of searching for evidence and recovering bodies in "deep, dark, and dirty" conditions—from murky riverbeds to the open ocean.

Luke shares the terrifying experience of working in shark-infested waters and explains why the "touch and feel" of a recovery operation never truly leaves you. They explore the professionalism required to operate in high-stakes environments and the emotional toll of a career spent finding what no one else wants to find.

In this episode:

• The reality of body recovery in zero-visibility environments.
• The dangers of diving with Great White sharks.
• The intense selection process and resilience required to be a police diver.
• The lifelong impact of "deep, dark, and dirty" operations.

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What does it take to hunt a predator in the dark? In this episode of I Catch Killers, Gary Jubelin sits down with Luke McCulloch, a former police diver and officer whose career was defined by the motto: Profundus, Obscurus, Suridus - Deep, Dark, and Dirty.

Luke recounts the chilling moment a routine traffic stop for a motorbike with no headlights led to a major breakthrough in the hunt for the notorious West Perth Rapist. From his early days as the youngest sworn officer in Western Australia to the gruelling selection process of the police dive squad, Luke shares the reality of life on the thin blue line.

Dive into the psychological and physical challenges of policing in the "Wild West," the importance of de-escalation, and the split-second decisions that can lead to solving a high-pressure case.

In this episode, we discuss:

-The traffic stop that caught Steven Michael Adams (The West Perth rapist).

-Luke's experience patrolling the remote Pilbara and the unique challenges of country policing.

-The intense, hypothermia-inducing training required to become a police diver.

-What it’s really like searching for evidence and bodies in pitch-black water using nothing but touch.

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Loved ones of missing people are desperate for answers, and unfortunately there are people more than happy to exploit their despair for their own gain.

In part two of her conversation with Gary Jubelin, missing persons advocate and author Nicole Morris calls out clairvoyants and psychics, exposing the very real trauma caused by false hope. The pair discuss why all missing persons should be treated as homicides until proven otherwise, how dangerous assumptions made early in an investigation can derail justice and leave families without answers for years, and call for better resourcing and a national approach to missing persons investigations.

Nicole is the author of Lost: More True Stories from Families of Australian Missing Persons.

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Every single day, around 130 Australians on average are reported missing. For the families left behind, there are no funerals, no closure, and no answers, just an unbearable silence where a person used to be. Nicole Morris has spent over two decades refusing to let that silence win.

As the founder and director of the Australian Missing Persons Register, Nicole has supported countless families through the devastating trauma of unexplained disappearance. For more than two decades, she has earned the trust of law enforcement agencies and government bodies across Australia and internationally through her relentless commitment to ensuring the missing are never forgotten.

In this episode of I Catch Killers, Gary and Nicole break down the human cost of disappearance, what it truly means to live with an "ambiguous loss", and share the stories of families whose lives have been irrevocably changed by unanswered questions.

Gary and Nicole also take a hard look at the system. Why does the first response to a missing persons report matter so much? What goes wrong when cases aren't treated with urgency? And why does the dangerous myth that you must wait 24 hours before reporting someone missing continue to cost precious time?

Nicole is the author of Lost: More True Stories from Families of Australian Missing Persons.

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Less than 10% of reported sexual assaults result in a conviction in Australia. So, what does it actually take to bring a rapist to justice? In part 2 of former police officer and survivor Caroline Clarke’s chat with Gary Jubelin, we find out exactly that. 

In this episode, Caroline details the aftermath of being sexually assaulted by a massage therapist - from the agonising decision to report, to becoming an active force in her case recording a confession that police called "the best they’d ever heard".

Caroline also unpacks one of the most misunderstood reactions in trauma - the freeze response, a survival mechanism hardwired into all of us. Yet it still continues to be used against survivors in courtrooms, in conversations, and in their own heads. Caroline breaks down why it happens, how it works, and why the shame so many survivors carry about it is not only unfair, it's wrong.

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Caroline Clarke spent nearly a decade as a police officer on the rough streets of West Yorkshire chasing down criminals, working the drugs squad, and stepping into homes torn apart by domestic violence. But nothing in her training prepared her for what happened when she became a victim-survivor herself.

In this episode of I Catch Killers, Caroline opens up about growing up in a home where love and violence lived side by side, the silence she inherited from her mother, and the sexual assault that left her questioning why her body froze when she thought she would fight. Caroline breaks down the freeze response, a trauma reaction still misunderstood by police, juries, and the public, and explains why survivors are so often blamed instead of believed.

Caroline is now the founder of the No More Silence movement, dedicated to helping survivors break their silence and shift the shame back to where it belongs.

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UFC heavyweight Brando Peričić returns for part two on I Catch Killers, opening up about the darkness he carries into the cage, witnessing a horrific car crash where he performed CPR on a dying man, living out of his car by choice even as his career takes off, and the role his faith plays in controlling his ego. Brando and Gary get candid about depression, imposter syndrome, his complicated relationship with his father, and Brando's relentless pursuit of becoming the first Australian UFC heavyweight champion.

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