Arnold Karl Sodeman "The School-Girl Strangler", serial killer. He targeted children and confessed to 4 killings before being executed at Pentridge Prison, Victoria in Sodeman was the second of eleven people to be hanged at Pentridge Prison.
In the early a serial killer left the bodies of his victims nearby the Highway in multiple states. No suspect was ever discovered. The case was featured on "America's Most Wanted" and "Unsolved Mysteries.