Anger, sadness, shock and frustration.
They're just some of the emotions that were evoked while watching an investigation into the abduction and murder of Bronwynne Richardson over the past two nights.
The two-part series looked to answer one question: Who killed the Corowa showgirl on October 12, 1973?
For a long time, police inquiries have focused on Miss Richardson's former boyfriend Geoffrey Brown, along with Max Martin, Ross Eames and Kevin Newman.
Miss Richardson's second cousin, Colin Newey, was arrested and charged with her rape and murder in July 2015 but the charges were dropped.
Mr Newey spoke publicly for the first time in Murders, Lies and Alibis, passing a "truth machine" test, which cleared him of any involvement in Miss Richardson's death.
The reliability of polygraph machines, commonly known as lie detector tests, is up for debate, with NSW deeming them inadmissible as evidence in court.
The program finishes by turning the spotlight back on Mr Brown, through a secret recording from Mr Eames aired for the first time, naming those who were allegedly at the murder scene at Horseshoe Lagoon.
Whatever your view, what's beyond doubt is that the killer, or killers, have never been held to account for their despicable actions.
If that causes anger, sadness, shock and frustration for us, imagine how Miss Richardson's family must feel.
For 46 years they've been unable to move on - their precious Bronwynne without "rest in peace" on her gravestone - while the perpetrators walked free, amongst us.
There is a lot to say after watching two-and-a-half hours of footage on this case but perhaps the words of Miss Richardson's sister, Fiona Hume, sum it up best.
If you know something, "be a man and do what you know you need to do".
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