The disappearance of Juanita Nielsen is one of Australia's most infamous murder mysteries. ACS examines the three main suspects and answers a crucial question, who killed Juanita?

Renae Marsden died by suicide on the day her relationship ended. Her family reveal the inside story and the tragic twist, where Renae's tormenter is yet to be brought to justice.

He's been described as Australia's Hannibal Lector, an opportunist killer, with unspeakable obsessions. Is this Australia's worst child killer?

In 1994 twenty-two-year-old dancer and model, Revelle Balmain vanished. What really happened that night remains a mystery. We re-trace Revelle's final steps.