Rosslyn McQueen was 30 years old, 22 weeks pregnant, and found dead on a kitchen chair in her rural Victoria home in April 1986. No police investigation was conducted at the scene. Her death was written off as natural causes.

Three months later, toxicology came back. She had died from a fatal dose of strychnine. Gary Jubelin sits down with solicitor turned citizen sleuth Karina Berger, the researcher behind The Poisoned Wife with investigative journalist Hedley Thomas to walk through how a case collapses when the first 48 hours are lost, and how investigative podcasting is now dragging it back into the light.

In this Episode:

• Why the GP's refusal to issue a death certificate triggered the autopsy that cracked the cause of death
• What a coronial inquest found in 1987 — and why the trial that followed was discontinued
• The husband's claims about Rosslyn’s health, and what the records actually showed
• How former private investigator Rex Bakes ended up sending Hedley Thomas a padlocked suitcase of documents
• What new information the podcast has already generated, and what a police reinvestigation would take

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Former solicitor Karina Berger walked away from the law to become the researcher and producer behind Australia's biggest true crime investigations with investigative journalist Hedley Thomas, including Bronwyn and The Poisoned Wife.

In Part 1 of this interview, Gary Jubelin sits down with Karina to unpack how legal analysis and investigative journalism collide to crack cold cases — from a suitcase of documents to the painstaking work of uncovering facts that force police to reopen cases.

In this episode:

• Why Karina left law to hunt the truth in cold cases

• Inside the research behind The Poisoned Wife investigation

• How podcasts are forcing the system to revisit unsolved deaths

• What it really takes to turn boxes of files into evidence

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In this episode of I Catch Killers, Gary Jubelin sits down with Kerry Tucker, former prisoner turned prison reform advocate to track her extraordinary 20-year redemption.

Inside, Kerry became known as the "jail lawyer." 

She kept daily diaries, completed a Master of Arts through Swinburne University (the first Australian university graduation ever held inside a prison), wrote a children's book for incarcerated mothers that's still in circulation today, and began writing parole letters for other women, going from almost no women getting parole to 38 at her lowest count.

She spent her final 6 months working in a law firm in Werribee, left prison on a Friday and was lecturing at university on the Monday, went on to complete a PhD, and has spent two decades advocating for prison reform, education and fraud awareness.

That work was formally recognised in November 2022, when the Magistrates' Court of Victoria spent and removed her criminal and prison record with the endorsement of the Victorian Chief Commissioner of Police, the Attorney General of Victoria, the Assistant Commissioner of Corrections and the Chief Magistrate.

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When suburban mum Kerry Tucker decided she should start hitting the gym, she didn’t expect to be arrested a month later. For more than six years, Kerry had stolen two million dollars from her employer. 

In this episode, Kerry takes us inside the first 24 hours inside a women’s maximum security prison as a ‘cleanskin’, where she was locked up with some of Australia’s most infamous female criminals.

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In this second part of I Catch Killers, Gary and Rojé delve deep into the chilling psyche of Katherine Knight—the only woman in Australia sentenced to life in prison without the possibility of parole.

What drives a person to commit the unthinkable? They explore the gruesome crime scene that shocked even the most veteran homicide detectives, the calculation behind the skinning and butchering of John Price, and the psychological "triggers" that Katherine used to justify her actions.

Gary and Rojé break down the terrifying final 24 hours of John Price's life, the warning signs that were missed, and the "nature vs. nurture" debate surrounding Knight’s fraternal twin sister. This is a gritty look into a real-life horror story and the long-term impact such extreme cases have on the detectives and communities left in their wake.

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What Katherine Knight did to her partner John Price wasn't just murder, it was something far more twisted. Katherine was a woman consumed by two things: a crippling fear of abandonment, and an insatiable need for control, enforced through violence, manipulation, and sexual exploitation. Most Australians know the horror of how John Price died. What they don't know is the decades-long history of abuse Katherine inflicted on the men in her life, and anyone else she deemed an obstacle. Which raises an uncomfortable question, if a man had done to women what Katherine did to men, would he have been stopped years earlier?

In this episode of I Catch Killers, Gary Jubelin is joined by Rojé Augustin, whose new book The Butcher of Aberdeen, delves into Katherine’s chilling past shaped by childhood trauma, violent relationships, and a relentless descent into madness.

Rojé Augustin is the author of The Butcher of Aberdeen: An Australian Story of Sex, Madness, and Murder.

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Veteran journalist and author Neil Mercer returns to I Catch Killers for part two of his confronting examination of wrongful convictions in the Australian justice system. 

In this episode, Neil and Gary Jubelin revisit one of the most embarrassing periods in NSW Police history: the case of Harry Blackburn, a former police superintendent publicly branded a serial rapist and paraded before the media before he was ever formally charged. They unravel the extraordinary chain of failures that led to his very public downfall, a saga that only ended when a Royal Commission finally exposed the truth. 

They also unpack DNA evidence, long considered the gold standard in forensic science, and just how far from infallible it can be, and the broader, systemic issues that allow innocent people to be wrongly convicted: unreliable eyewitness identification, the historical use of "police verbals" and false confessions, inadequate legal representation, and the unique challenges faced by First Nations Australians navigating a justice system not built with their language or culture in mind.

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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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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