The lonely outback road has been called Australia's 'highway of death' - and with good reason. Over more than 50 years Flinders Highway, which stretches 800km from Townsville to Mount Isa in north Queensland, has claimed 12 victims who were murdered or vanished, never to be seen again. Many believe the killings and disappearances were the work of one serial killer, but an American criminal profiler who has closely studied the cases disagrees. What I do believe is that there are multiple killers responsible and that in reality the Flinders Highway becomes a serial location,' Mr King told Channel 10's The Sunday Project.