Mandatory Murder: Steven SchubertOctober, 2011: At first it looked like a swag, said the grader driver who found the body just off the road outside the outback town of Katherine. Police identify the dead man as Ray Nicefero, who'd recently appeared in court for aggravated assault and breaching a domestic violence order. Three days later, three young local suspects were arrested: Christopher Malyschko; Darren 'Spider' Halfpenny; and 19 year old indigenous Zak Grieve. A month later,