What are the steps a lone actor takes when preparing a violent attack? Can they be stopped?

In Part 2 of forensic psychologist turned detective Ian Cherrington’s chat with Gary Jubelin on I Catch Killers, Ian unpacks warning signs and ‘leakage’ that suggest planning is underway.

Ian shares practical ways to support people showing early extremist views, and explains how lone actors differ from the ‘sovereign citizen’ movement.

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As a teenager, Ian Cherrington became fascinated by the psychology of serial killers - a fascination that would shape his entire career. He began as a forensic psychologist studying the minds of serial killers before making an unconventional leap into frontline policing as a detective in the UK. After years investigating homicides and linking crimes across the country, Ian transitioned into counter-terrorism and lone actor threat assessment, positioning himself at the cutting edge of one of modern policing's most pressing challenges.

In Part 1 of his conversation with Gary Jubelin on I Catch Killers, Ian recounts the harrowing case of Robert Black, a paedophile and child killer whose crimes became the catalyst for Ian's decision to join the police. Ian also unpacks the critical psychological differences between serial killers and lone actors.

Questions for Gary: icatchkillers@news.com.au

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After 40 years of silence, former sex crimes detective Graeme Simpfendorfer confronted the man he says abused him in a recorded phone call.

In part two of his powerful conversation with Gary Jubelin on I Catch Killers, Graeme opens up about the anxiety of giving a police statement, a process he’d navigated countless times professionally, but never as a victim survivor, and takes us inside the harrowing years-long fight for justice.

If you or someone you know needs help, there is support available. You don’t have to go through it alone. Please reach out to support services like 1800RESPECT.

This interview was recorded before Graeme's case went to trial. In the time since this recording, Graeme's specific case went to court and resulted in an acquittal. However, the same individual also faced trials over a number of other historical sexual offences against children. The defendant pleaded not guilty to all charges and has maintained his innocence throughout. While he was found guilty of sexual offences relating to four victims, the defendant continues to maintain his innocence and has filed a motion to appeal those convictions.

Listen to Graeme's previous interview on I Catch Killers here: Part 1 & Part 2

Questions for Gary: icatchkillers@news.com.au

Get in touch with the show by joining our Facebook group, and visiting us on Instagram or Tiktok.

See omnystudio.com/listener for privacy information.

Graeme Simpfendorfer spent 27 years in the Victoria Police, leading elite squads in Homicide and Sexual Offences. He was a veteran detective catching predators until a training lecture on grooming behaviours unlocked a trauma he had suppressed for decades. Graeme realised that as a teenager, he had been the victim of the very crimes he spent his professional life investigating.

In this episode, Gary and Graeme discuss the "war of attrition" that followed when a top detective had to report his own abuser. Graeme reveals the clinical reality of recording a sting call and the struggle of wearing a "Batman mask" to survive his trauma.

If you or someone you know needs help, there is support available. You don’t have to go through it alone. Please reach out to support services like 1800RESPECT.

This interview was recorded before Graeme's case went to trial. In the time since this recording, Graeme's specific case went to court and resulted in an acquittal. However, the same individual also faced trials over a number of other historical sexual offences against children. The defendant pleaded not guilty to all charges and has maintained his innocence throughout. While he was found guilty of sexual offences relating to four victims, the defendant continues to maintain his innocence and has filed a motion to appeal those convictions.

Listen to Graeme's previous interview on I Catch Killers here: Part 1 & Part 2

Questions for Gary: icatchkillers@news.com.au

Get in touch with the show by joining our Facebook group, and visiting us on Instagram or Tiktok.

See omnystudio.com/listener for privacy information.

Twelve months after the brutal murder of her daughter Audrey, Kathleen Kirby returns to discuss the "numb" reality of her life. Unable to grieve while fighting for justice, Kathleen has stepped in where the system failed - organising community walks and personally tracking down overlooked CCTV footage.

Gary and Kathleen explore the devastating "ripple effect" of homicide and the lack of support for families left behind, from administrative coldness regarding Audrey’s belongings to the confusing pain of waiting for a coroner’s report.

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In 1974, a 17-year-old girl in Sydney answered the door to a man claiming to be an encyclopaedia salesman who carried nothing with him and left her with a chilling "full body rush" of fear.

Decades later, that woman's daughter - award-winning author Candice Fox - realised this family story aligned with the timeline of two unsolved homicides from the same neighbourhood. Candice details how this personal connection led her to report the encounter to police and attempt her own investigation into the deaths of Lynette White and Maria Smith and how these tragedies formed the inspiration for her new novel.

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Author Candice Fox doesn't just write crime; she lives it through research for her books, including a chilling five-hour, "full-contact" visit in a San Quentin jail with one of America’s worst serial killers, the notorious "Toolbox Killer.”

In this episode of I Catch Killers, Candice gives host Gary Jubelin a peek into a childhood she calls a madhouse…growing up with more than 150 foster siblings and a father who worked as a parole officer, giving her a glimpse into humanity’s darkest corners before she even hit double digits. Hear how she channels real‑world evil into compelling stories.

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On a stormy day, Cameron Hardiman’s Air Wing team got a call: there was a man in the middle of Bass Strait clinging to a broken yacht. What should have been a routine rescue turned brutal.

In Part 2, Cameron explains how that terrifying rescue pushed him into the AFP, where he broke up raids in the Solomon Islands, and played delivery driver for a $200 million cocaine bust. Cameron was eventually diagnosed with PTSD, and he talks to Gary Jubelin about the end of his police career.

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