In the lead up to Katie O'Shea's disappearance we explore the unanswered question and reveal a possible suspect. 

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When we first released this podcast in 2020, Kathleen “Katie” O’Shea’s family had already spent nearly 15 years searching for answers. Now, on the 20th anniversary of her disappearance and suspected murder, police and Katie’s daughter are again appealing to the public.

Katie was last seen in Atherton on 29 December 2005 after travelling to Queensland to visit family. A coronial inquest later found she likely died soon after, in the Tablelands area.

With a $500,000 reward now on offer, investigators believe someone still knows what happened. In this episode, we revisit Katie’s story, the unanswered questions, and the family’s ongoing fight for truth and justice.

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When your 18 year old son goes missing and there are no clear answers after a long period of time, you resort to any means necessary to find out What happened to Zac Barnes?

If you know anything about Zac Barnes’ disappearance, contact Crime Stoppers on 1800 333 000.

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Zac's disappearance didn't just impact the family, it impacted those left behind in the community around them.  

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Head back to that weekend in 2016 when Zac went missing plus we visit the location where he was last seen.  

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In 2019, we told the story of Zac Barnes  an 18-year-old from the Hunter Valley who vanished in November 2016 after getting out of a friend’s car on the way to Thornton train station and running into nearby bushland.

At the time, Zac’s family were still searching for answers. His body had never been found. The questions around what happened that day and what may have happened afterwards remained unresolved.

Now, almost a decade after Zac disappeared, a NSW coronial inquest has found that Zac is most likely deceased and that he died in suspicious circumstances. The coroner was unable to determine the exact manner, cause, or place of his death, but recommended the NSW unsolved homicide team take over the investigation.

This new release revisits the story we first told in What Happened to Zac?, with the benefit of the coroner’s findings and the painful clarity they bring. It is a story about a young man who never came home, a family who refused to stop fighting for him, and a case that still demands answers.

Zac’s mum said he “deserves justice and to be found”  and that his family deserves answers.

What Happened to Zac? is the story of a disappearance, a delayed search, years of uncertainty, and a family’s ongoing fight to find out what really happened to Zac Barnes.

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Welcome to a new podcast in this feed. It's called What Happened To...

Each week we will share new stories of long-term missing Australian people. The idea is to bring awareness to these cases. To kick off, we are republishing some of the previous shows we have produced in support of the missing. 

In 2019, we told the story of Zac Barnes, an 18-year-old from the Hunter Valley who vanished in November 2016 after getting out of a friend’s car on the way to Thornton train station and running into nearby bushland.

At the time, Zac’s family was still searching for answers. His body had never been found. The questions around what happened that day and what may have happened afterwards remained unresolved.

Now, almost a decade after Zac disappeared, a NSW coronial inquest has found that Zac is most likely deceased and that he died in suspicious circumstances. The coroner was unable to determine the exact manner, cause, or place of his death but recommended the NSW unsolved homicide team take over the investigation.

This re-release revisits the story we first told in What Happened to Zac? with the benefit of the coroner’s findings and the painful clarity they bring. It is a story about a young man who never came home, a family who refused to stop fighting for him, and a case that still demands answers.

Zac’s mum said he “deserves justice and to be found" and that his family deserves answers.

What Happened to Zac? It is the story of a disappearance, a delayed search, years of uncertainty, and a family’s ongoing fight to find out what really happened to Zac Barnes.

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To close out the season, Sally and Joni come together for one final conversation about Marion's case, what’s been happening in the background, what new information has come to light, and where the investigation may go next. 

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A psychic reading sends Sally to Mullumbimby looking for answers about her mum, Marian Barter — but this episode goes further. Sally also shares moving updates on Joanne’s decades-long grief for Andrew Inglish, Jason’s ongoing search for his father Nicola, and the growing momentum behind the Green Seat Project.

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In this urgent bonus episode of The Missing Matter, Sally shares the story of Yvonne Whear

, a 73-year-old woman who disappeared from her rural New South Wales property in February 2026 without explanation.

As her family searches for answers, the episode explores the final known movements in Yvonne’s case, the growing concerns around missing persons investigations in the Northern Rivers, and the haunting question of what may still lie hidden in local waterways. Joined by Kim Marshall, Sally unpacks the reality families face when a loved one vanishes and why awareness, action, and truth matter more than ever.

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