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First broadcast at 22:00 20 Sep 2012
An examination of the murder of teenager Naomi Smith in Nuneaton, Warwickshire and the subsequent police investigation.
An elderly woman is found murdered in her home.
A woman's body is found bound and gagged.
How the use of forensics and technology has helped to solve baffling real-life murders, featuring dramatised reconstructions and eyewitness accounts.
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Channel 5 Broadcasting Ltd. 2015