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It was a scene of unspeakable evil when a routine callout turned into Queensland's deadliest police shooting.
Four young police officers were ambushed in the outback town of Wieambilla. Two were executed in cold blood, and an innocent neighbour was also gunned down. Two officers escaped the siege, injured but alive. Dozens of police reinforcements engaged in a six-hour gunfight against three heavily armed cop killers.
An investigation would unearth a dark and twisted web of conspiracy theories and religiously motivated terrorism. How a routine callout spiraled into a bloody massacre will be probed in a coronial inquest.
The Ultimate Sacrifice is the latest podcast from the acclaimed team of 9News presenter Melissa Downes and producer Jessica Lodge, following their multiple award-winning podcast Hannah's Story, and is produced in partnership with 9News and 9Podcasts.
Content Warning: This series contains content that may be distressing for some listeners.

What if the full story behind Australia's most notorious serial killer Ivan Milat has never been told?In episode one of this special series of Motive&Method, forensic scientist Dr Xanthe Weston and criminal psychologist Tim Watson-Munro break down the unsolved missing & murdered cases being re-examined in a landmark parliamentary inquiry.Tim & Xanthe have been working for years, alongside family members, on many of these cases. Now they're being called to give their expert submissions, highlighting the evidence and potential links in some of the investigations. In Australia's Killer Secrets, Tim & Xanthe are taking you inside the hearings to explore the evidence - talking to family, police and politicians - in this new search for answers in some of Australia's most enduring mysteries. See omnystudio.com/listener for privacy information.

What if the full story behind Australia's most notorious serial killer Ivan Milat has never been told? And what if more recent cases point to a copycat killer - or worse?In this special series of Motive&Method, forensic scientist Dr Xanthe Weston and criminal psychologist Tim Watson-Munro take you inside a landmark parliamentary inquiry examining dozens of unsolved murders and disappearances.From new evidence to long-overlooked links, Australia’s Killer Secrets explores the mysteries that continue to haunt a nation. Series launches Wednesday June 10. See omnystudio.com/listener for privacy information.

Weeks out from the third anniversary of the Wieambilla shootings, the State Coroner hands down his report - finding the actions of the Trains on 12 December, 2022 was not a ‘terrorist act’. Some, but not all, of the key issues raised in the inquest are addressed in the Coroner's 10 recommendations - including drones for regional police, mandatory mental health checks for gun licences, intelligence sharing and training for triple 0 call operators. The McCrow and Arnold families voice their disappointment at the findings and recommendations. They pledge to continue to channel their grief into bringing about systemic changes.See omnystudio.com/listener for privacy information.

A major update in Donald Day Jr’s case - the man originally accused of inciting the deadly police ambush has struck a surprise plea deal in the United States. Melissa Downes is joined by Arizona journalist Cody Lillich to unpack the legal twists, the FBI recordings and how Day walked away with a watered-down conviction.See omnystudio.com/listener for privacy information.

A year after the Wieambilla shootings, on the other side of the world, FBI agents swarmed a petrol station in a remote Arizona town, making a dramatic arrest and revealing the man behind the name “Don”. Donald Day Jr. is now heading to trial on five federal charges and the evidence against him has been laid bare in new court documents; disturbing videos praising the Trains, online comments boasting about being “an x-con, who’s armed to the teeth”, and the cache of guns found at his home. In this episode, U.S Correspondent Jonathan Kearsley breaks down the evidence and how rejected plea deals, and attempts to throw out the charges, have drawn out this case.See omnystudio.com/listener for privacy information.

Heartache and disappointment consumed the coronial inquest on its final day. The mothers of Rachel McCrow and Matthew Arnold deliver emotional statements, sharing the many “what ifs” that still haunt them from that day, and the critical questions that remain unanswered. In this episode, new details come to light around radio blackspots, body worn cameras, the Arnold family’s agonising five-hour wait for answers, and Rachel McCrow’s final message. And as Internal Investigations hone in on opportunities for improvement, the families are demanding more be done; fighting for Matt and Rachel’s legacy to be one of change, so their sacrifice will protect others.See omnystudio.com/listener for privacy information.

Ominous final emails sent by Gareth Train never made it into the hands of Queensland police. Why were those four young constables sent to that property, into that ambush, without all the information? Would it have even made a difference? This episode takes us back to the start, unravelling the missing persons report that set this whole series of tragic events in motion. More than a dozen New South Wales and Queensland police officers are called into the witness box; every conversation, phone call and email scrutinised.See omnystudio.com/listener for privacy information.

Was the Wieambilla attack an act of terrorism? An expert in political and religious extremism dissects the evidence to address this question. He breaks down Gareth, Stacey & Nathaniel’s radicalisation into five phases, highlighting their dramatic shift through the pandemic along with the part Donald Day Jr played in the rapid escalation of the Train’s extremist religious beliefs. The Coronial Inquest hears about prison letters, more Youtube videos and cryptic diary entries, and the actions the Train’s took to “bunker down” believing they were nearing their “time in battle”.See omnystudio.com/listener for privacy information.

Gareth, Stacey and Nathanial Train had descended into a world of paranoia and conspiracy, experiencing a shared psychotic disorder; Folie à troix, “madness of three”. This is the assessment of one of Australia’s leading forensic psychiatrists who, after dissecting their upbringing, communications and relationships, has delivered a deep and comprehensive analysis of the Train’s mental state, concluding they were experiencing “identical persecutory and religious beliefs and delusions”. In this episode we hear how Gareth's diagnosis may stem all the way back to birth, how this delusional disorder evolved and how he was able to transfer his delusions to his wife and brother, as he revealed his 'Grand Opus' - ultimately leading them to believe the police were devils, and that they must fight to the death to reach religious salvation. See omnystudio.com/listener for privacy information.

They’re some of the most highly trained police officers in Australia; and now, specialist operatives take us inside “the most dangerous operation” they’ve ever faced - Wieambilla in December 2022. The team leader recalls the extraordinary ‘volley of gunfire’ that shook their heavy, armoured vehicles. The SERT commander lays out their mission to ‘isolate, contain and arrest’, and their tactical approach, fearing the Trains would escape. Plus, the court releases new recordings of negotiation attempts, appeals to the Trains to end the situation without violence, that went unheeded... See omnystudio.com/listener for privacy information.