For over fifty years, David Cunningham has been searching for the truth about his sister Anita, who vanished while hitchhiking Queensland’s notorious Flinders Highway in 1972.
While her friend Robin was tragically found murdered, Anita’s fate remains one of the Outback's most enduring and haunting mysteries.
In this powerful, extended interview from the documentary series Outback Murder Highway, David shares the grueling reality of a half-century search for justice. From the initial desperate weeks to the sudden breakthrough of new witnesses, he explores the theories, the suspects and his hope that someone who knows something will come forward.

This interview was conducted by Jo Townsend for the television series Outback Murder Highway - On Channel 9 at 8.30pm on Wednesday nights - from April 22 to May 13.
Or watch anytime here - on 9Now.

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Two 18-year-old girls disappeared on the Flinders Highway in 1972. One was found murdered, the other has never been found.
In this first episode of our special series for Outback Murder Highway, Tim & Xanthe are joined by investigative journalist Amelia Oberhardt to dissect the unsolved case of Anita Cunningham and Robin Hoinville-Bartram. Could police have missed crucial evidence all those years ago that could prove they were victims of one of Australia's most notorious serial killers?

You can watch the Outback Murder Highway TV documentary series 8.30pm Wednesday on Channel 9 from April 22 to May 13.
Or watch anytime here - on 9Now.

See omnystudio.com/listener for privacy information.

One Australian highway - 11 people dead or missing
In this special series, criminal psychologist Tim Watson-Munro and forensic criminologist, Dr Xanthe Weston are unpacking four major cases under investigation in the exclusive new television documentary series Outback Murder Highway.
In each episode, Tim & Xanthe are joined by investigative journalist Amelia Oberhardt to dissect the history of these unsolved cases along Australia's notorious Flinders Highway, and the new developments revealed in the documentary series.
Plus, we'll be releasing bonus extended interviews from the documentary series.
Launching April 23.

Watch Outback Murder Highway every Wednesday night from April 22 - May 13 at 8.30pm on Channel 9 or catch up anytime on 9Now.

See omnystudio.com/listener for privacy information.

Breaking news on notorious serial killer Ted Bundy decades after his execution - A DNA breakthrough has linked Ted Bundy to another cold case murder, proving his story may not be as closed as once believed. In this bonus episode, Xanthe and Tim unpack the breakthrough and what it reveals about the enduring power of forensic science. Also, how rapid advances in DNA technology are cracking long-cold cases here in Australia and driving fresh arrests. From infamous killers to unknown offenders, this episode explores how science is reshaping investigations and what secrets might still be waiting to surface.

You can watch our full video episodes on Youtube - click here!

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A dramatic arrest on a Queensland beach and a years-long search for a missing baby - it’s not all cybercrime for private investigator Ken Gamble! In part two of our conversation, Ken takes us inside his pursuit of Australia’s most notorious conman, Peter Foster. Plus, how he got dragged into a major case of a missing baby in the United States - and unravelled the mother's conflicting claims of murder and adoption.

You can watch our full video episodes on Youtube - click here!

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He’s helped bring down international fraud rings, recover millions for victims and hunt some of the world’s most notorious con artists - including serial swindler Peter Foster.
In part 1 of Tim & Xanthe’s conversation with private investigator Ken Gamble, Ken talks overnight mafia stakeouts, unmasking one of the world’s first major online ticket scammers and busting ‘boiler rooms’ in the Philippines that were stealing millions from Aussie mums and dads.

Part two is out next week - 8th April, 2026.

You can watch our full video episodes on Youtube - click here!

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Her husband died. She wrote a book about grief. Then she was charged with his murder.
The Kouri Richins case is one of the most talked about recent criminal trials. While she was giving interviews spruiking the book she wrote to help her children cope with the loss of their father, investigators were uncovering drug deals, secret debts, an affair and a sinister murder plot. In this episode, Tim & Xanthe discuss how a story of grief unravelled into a murder motivated by greed.

You can watch our full video episodes on Youtube - click here!

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He was one of Australia's most feared predators - and he was never caught. In this episode, Tim & Xanthe revisit the terrifying crimes of Mr Cruel, the masked offender who stalked Melbourne’s eastern suburbs, targeting young girls, in the late 1980s. Tim worked alongside Victoria Police at the time, profiling the serial rapist as the attacks grew more brazen, escalating from calculated home invasions and kidnappings to the murder of 13-year-old Karmein Chan.
More than thirty years on, the mystery remains: how did one of Australia’s most methodical offenders get away with it - and could Mr Cruel still be out there?

You can watch our full video episodes on Youtube - click here!

See omnystudio.com/listener for privacy information.