Bonus: David Cunningham [Extended Interview]

For over fifty years, David Cunningham has been searching for the truth about his sister Anita, who vanished while hitchhiking Queensland’s notorious Flinders Highway in 1972.
While her friend Robin was tragically found murdered, Anita’s fate remains one of the Outback's most enduring and haunting mysteries. 
In this powerful, extended interview from the documentary series Outback Murder Highway, David shares the grueling reality of a half-century search for justice. From the initial desperate weeks to the sudden breakthrough of new witnesses, he explores the theories, the suspects and his hope that someone who knows something will come...