Former detective Ron Blackshaw breaks his silence to reflect on critical aspects of the police case, 40 years after charging Ray with Ros's murder. 

Ray told friends, neighbours, work colleagues and teenager Donna that Ros had cancer and might die. Ros and her doctors told a very different story. 

A former neighbour of Ray and his first wife Jeanette speaks publicly for the first time about helping Jeanette flee the family home. 

Peter and Yvonne Dixon "call bullshit" on Ray's claims their neighbour Vin McKenzie supplied the strychnine that killed Ros. They say Vin went to his grave heartbroken from the smear.

Rex's reasons for relentlessly investigating Ros's death become clearer. 

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