In January 2000, the bodies of Pamela and Bill Weightman were found in the wreck of their car at the base of a cliff Police said it was an accident, but Pam's sister was convinced they were murdered.

The skeleton of a small girl turned up inside tattered suitcase on a dusty South Australian highway in 2015. Police knew immediately they were the remains of a murdered child.

A likeable horse trainer was tortured, his mutilated body found in a burnt-out sedan beside a freeway south of Sydney. His killers were never found, and the murder was filed away as a cold case.