Ivan Milat died in 2019 - and now experts believe they have uncovered evidence the backpacker killer was responsible for up to TWENTY other unsolved murders. 7NEWS Presents Ivan Milat: Buried Secrets premieres Sunday, 14 March at 7pm on Channel 7 and 7plus. | Sunrise

Meet the woman who has corresponded with serial killer Ivan Milat for 20 years — and is on a mission to answer lingering questions before he takes his deadly secrets to the grave. | Sunrise

To this day, he remains Australia's most notorious serial killer. Ivan Milat was found guilty of murdering 7 people but police still believe he killed many more. Milat took the truth to the grave but now a new investigation looks set to identify more missing victims. www.7NEWS.com.au #7NEWS | 7NEWS Sydney

397 reactions · 179 shares | Ivan Milat was convicted of the murders of seven backpackers. This week on Sunday Night, Steve Pennells revisits the terrifying crimes, unearthing new information - and identifying more potential victims. We also hear shocking confessions from Milat’s brother, and from a British backpacker who believes he came within seconds of becoming Milat’s first kill. Our investigation this Sunday at 8:45pm on Channel 7. | 7NEWS Spotlight | Facebook