Hear from the detective who recovered Tim Thomson's missing bike in the weeks following the discovery of the three friends' bodies. Who is Bruce John Preston and what significance did he have in the original investigation? 
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Episode 5: The arrest

It was a real-life Wolf Creek. In 1978, three friends left Alice Springs on an adventure exploring the Australian outback. Weeks later, a man walking his dog stumbled across their bodies in a remote area of bushland in North Queensland. They’d been hunted down and shot, one of the victims dying as he clutched hold of a tree. Police brought in to investigate were badly injured in a helicopter crash and soon after, the investigation stalled. The Courier-Mail explores one of Australia’s most forgotten mysteries: The Spear Creek murders. The killer is still out there.

Episode 4: Thieves and leads