Lyn and Chris Dawson appear to have the perfect marriage. He's a star footballer and popular high school teacher. She's a devoted wife and mother. They share a beautiful home above Sydney's northern beaches. But when Lyn goes missing, dark secrets are buried. This is no fairytale, but a sordid story of strangely close twin brothers, teenage student lovers, and probable murder. The Australian's Hedley Thomas digs deep into a cold case which has been unsolved for 36 years, uncovering startling new evidence.

Witness is the home of investigative podcasts for news.com.au It’s 10.56am. A family home in Kendall, on the Mid North Coast of New South Wales. Three-year-old William Tyrrell is reported missing. Last seen wearing his favourite Spider-Man suit. Ten years after his disappearance on 12 September 2014, there is still no sign of William. The police believe his foster mother knows something. She denies it. Only one of them can be telling the truth. Witness: William Tyrrell is the new, landmark investigation from news.com.au. Read more and watch exclusive video content here Follow us on socials: Instagram: @newscomauhqFacebook: News.com.au TikTok: @news.com.au Subscribe to Crime X+ and listen to this podcast ad-free If you know anything about what happened to William, please call CrimeStoppers on 1800 333 000 Contact us confidentially at witness@news.com.au Witness season 1: The Missing 49 Million The story of one Aussie man, the secret code he claimed to find buried in the Bible and $49 million dollars of investors' money that's gone missing. Gold Coast businessman Alan Metcalfe said his tech company had found the secret to artificial intelligence. He convinced hundreds of people to part with their life-savings but when Alan died, no one knew what had happened to their money.  Join Alex Turner-Cohen as she tries to find the missing millions, uncovering the wild story behind the company Alan promised would one day be “bigger than Google”.

The story of a seemingly ordinary family lunch that turned out to be anything but normal. Follow the journalists piecing together the puzzle of how three people died after sitting down to share a meal in the small Australian town of Leongatha, Victoria. With the woman who prepared that meal now accused of murder, The Mushroom Cook explores the story so far – and reports on the court hearings as Erin Patterson faces trial. For more visit: themushroomcook.com.au To unlock bonus content from The Mushroom Cook, and listen to episodes early and ad free, subscribe to Crime X+ on Apple Podcasts, or theheraldsun.com.au The Mushroom Cook will be released on Crime X+ from Friday 29 March. Follow us on socials for updates and more content on The Mushroom Cook and other award-winning podcasts Crime X+: Instagram, Facebook and TikTok Herald Sun: Instagram, Facebook and TikTok

Shandee Blackburn was brutally murdered as she walked home from work - but this cold-case can still be solved. Gold Walkley-winning journalist Hedley Thomas - who created The Teacher’s Pet and The Night Driver - goes deep to find out who killed Shandee, and why.  Episodes of the podcast first, plus exclusive stories, videos, pictures and extraordinary evidence are available with a subscription through The Australian's app, or at shandee.com.au To contact Hedley Thomas anonymously with any information on Shandee's Story email here - Shandee@theaustralian.com.au

From Hedley Thomas and the journalists at The Australian, The Teacher's Trial follows the events in the trial of Chris Dawson, who is accused of the murder of his wife Lynette Dawson. To read The Australian's ongoing coverage of the trial search The Teacher's Trial or click here.

Theo Hayez is missing in Byron Bay, a beautiful beachside town on Australia’s most easterly mainland point, frequently in the spotlight for its famous residents. Theo's from Brussels. He's 18 and on a backpacking holiday when he vanishes in May 2019. Behind the scenes local volunteers who've never met Theo begin searching and investigating with his family, parallel to a major police investigation. At the request of Theo's family, The Australian newspaper's national crime correspondent David Murray joins the unofficial search party to investigate the mysterious disappearance for a new podcast series, The Lighthouse. Theo left a local bar around 11pm. As the search narrows to the area around the 118-year-old Cape Byron Lighthouse, a range of theories emerge. From the newspaper that brought you The Teacher's Pet and Who The Hell is Hamish, The Lighthouse investigates all possible scenarios as it takes you inside an extraordinary search. To read more about the disappearance of Theo Hayez, and access exclusive photos and video material, go to www.lighthousepodcast.com.au.