It was an anonymous tip-off to Crime Stoppers in May 2016, that helped police find Tiahleigh Palmer’s killer – her foster father Rick Thorburn, who has pleaded guilty to her murder.

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Lisa Brown, a mother of two young children, was 19 at the time she disappeared from Northbridge over 19 years ago.

Lisa's boyfriend told police that at about 12.30am on November 10, 1998 she parted company with him, walking down Brisbane Street and turning into Palmerston Street.