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Motive & Method

Motive & Method

TAPT Podcasts 100 Episodes Jul 21, 2026

Motive & Method is an expert-led Australian true crime podcast. Join Dr Xanthe Mallett and criminal psychologist Tim Watson-Munro as they unpack what really makes the offenders behind some of history’s most notorious cases tick, and also react and unpack crimes as they hit the headlines. You will also hear from victim survivors, investigators and advocates for change analysing motive, and method.

Episodes

9. Andrew Inglis: The First Love Who Never Came Home
9. Andrew Inglis: The First Love Who Never Came Home Jul 21, 2026 1530 A teenager climbed into his red Datsun and drove off into the rain on Boxing Day 1985. He was never seen again.Nearly 40 years later, what happened to 18-year-old Andrew Inglis remains a mystery. In this episode, Tim and Xanthe are joined by Andrew’s then-girlfriend, Joanne Greensill, who shares the heartbreak of losing her first love. Although she doesn't believe he met with foul play,
The Thailand Suitcase Murder: An Australian Charged
The Thailand Suitcase Murder: An Australian Charged Jul 17, 2026 1525 A 17-year-old disappeared in Thailand after meeting an Australian man. Less than a day later her body was found inside a suitcase abandoned near railway tracks. In this episode Tim and Xanthe examine the evidence authorities allege they have against Australian man Simon Peter Carman, and how they say they tracked him through an extensive network of CCTV. Carman denies intentionally killing th
8. Narelle Cox: If Not Milat, Then Who?
8. Narelle Cox: If Not Milat, Then Who? Jul 14, 2026 1654 Could an anonymous truck driver hold the key to solving this 50-year-old cold case?In this episode Tim & Xanthe sit down with Karen Cox, the sister of Narelle Cox, who vanished in 1977 while hitchhiking from Grafton to Noosa. She was just 21 years old and left a note saying she was visiting a friend for the weekend, but she never arrived and she never came home. Karen shares the devastating im
7. Marion Barter Pt. 2 - The Citizen Sleuth Who Found What Police Missed
7. Marion Barter Pt. 2 - The Citizen Sleuth Who Found What Police Missed Jul 12, 2026 2089 No badge, no warrant and no official powers - yet she uncovered vital evidence in the search for missing schoolteacher Marion Barter.In this episode, we speak with citizen sleuth and social worker Joni Condos, whose relentless research from her own living room uncovered crucial evidence in the mysterious disappearance of Marion Barter. Joni reveals how she traced hidden identities, unearthed
6. The Mysterious Disappearance of Marion Barter
6. The Mysterious Disappearance of Marion Barter Jul 9, 2026 1823 She secretly changed her name. Hundreds of thousands of dollars disappeared from her bank account. A convicted conman was questioned for days at a coronial inquest, yet nearly three decades later, no one knows what happened to Marion Barter.In this episode, Tim & Xanthe are joined by Marion’s daughter Sally Leydon. She reveals the extraordinary twists in her mother’s disappearance,
Chopper Read:  Australia’s ‘Celebrity’ Criminal
Chopper Read: Australia’s ‘Celebrity’ Criminal Jul 7, 2026 1767 How a notorious criminal became a pop culture legend.Tim & Xanthe unpack the violent life and complicated mythology of Mark Brandon ‘Chopper’ Read -  the underworld figure immortalised in film, television, and true crime folklore. From prison violence and gangland crime to media fame and the cult success of 'Chopper', we examine how a brutal criminal transformed himself into a
A Family Vanished: The 'Nannup Cult' Mystery
A Family Vanished: The 'Nannup Cult' Mystery Jun 30, 2026 2468 In 2007, four people vanished from a remote town in Western Australia - leaving behind an abandoned home, a cryptic note and a trail of unanswered questions. At the centre of the mystery was a self-styled spiritual leader, who had built an online doomsday cult. Over the past 20 years, as desperate family, police and coroners examined theories ranging from suicide pacts to staged disappearances, th
Bonus: Behind The Scenes With MP Jeremy Buckingham
Bonus: Behind The Scenes With MP Jeremy Buckingham Jun 26, 2026 1821 In this bonus episode, Tim and Xanthe sit down with MP Jeremy Buckingham, the driving force behind the parliamentary inquiry examining some of Australia’s most notorious unsolved murders and missing persons cases. Buckingham reveals what sparked his decade-long push for answers, the systemic failures families say have left them abandoned and why he believes these cases deserve fresh scr
5. Cheryl Grimmer: A Confession Ignored-  A Child Killer Never Caught
5. Cheryl Grimmer: A Confession Ignored- A Child Killer Never Caught Jun 23, 2026 1749 A three-year-old disappears. A teenager confesses. Yet more than five decades later, Cheryl Grimmer’s family is still fighting for justice.Cheryl Grimmer vanished from a beach change room in 1970, and despite a detailed confession decades later, no one has ever been held accountable for her murder. In this powerful interview, Cheryl’s brothers, Paul Grimmer and Ricki Nash, share the de
4. Keren Rowland: Was She Ivan Milat's First Victim?
4. Keren Rowland: Was She Ivan Milat's First Victim? Jun 16, 2026 1962 What if Ivan Milat’s first victim was killed more than two decades before the backpacker murders?Keren Rowland was 5 months pregnant when she was brutally murdered and hidden in a pine forest in 1971. In this episode, Tim & Xanthe sit down with Keren's brother Steve Rowland and former UK detective Hugh Hughes.They detail years of fighting for answers, alleging police ignored crucial lead
3. Kevin Docherty: 47 Years Searching For Answers
3. Kevin Docherty: 47 Years Searching For Answers Jun 11, 2026 1633 A twin brother's 47-year fight for answers, suspicious letters and a new witness who may hold the key to where Kay Docherty is buried.In this episode, Kevin Docherty shares the heartbreaking story of his sister Kay Docherty, who vanished alongside her friend Toni Cavanagh in 1979. Nearly five decades on, Kevin recalls the night they disappeared, the suspicious letters sent to their families days l
2. Ivan Milat's 11 Other Victims?
2. Ivan Milat's 11 Other Victims? Jun 11, 2026 1331 Families demand answers - police under scrutiny - and a revelation that could reshape the Milat case.At the first hearing into dozens of Australia’s unsolved murders and missing persons cases, police revealed a previously unheard list of potential additional victims linked to Ivan Milat. In this episode, forensic scientist and criminologist Dr Xanthe Weston and criminal psychologist Tim Wats

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