In October 1978 three bodies are found at Spear Creek in remote outback Queensland - each has a single rifle shot to the head. Decades later a prime suspect is ruled out but did witnesses identify another man?
In this special episode for Outback Murder Highway, Tim and Xanthe are joined again by investigative journalist Amelia Oberhardt to unpack the documentary investigation into the unsolved murders of Karen Edwards, Tim Thomson and Gordon Twaddle.
You can watch the Outback Murder Highway TV documentary series 8.30pm Wednesday on Channel 9 from April 22 to May 13.
Or watch anytime here - on 9Now.

Bonus: David Cunningham [Extended Interview]
24:49

Outback Murder Highway: The Sensible Creek Killings
31:20

Introducing: Outback Murder Highway
02:00