A mum of 11 is brutally murdered in her home after a night out and Police Scotland draw a blank as to who could have killed her.
Now, 40 years on, a new book reveals how the murder of Mary McLaughlin was finally solved after her killer was identified through a cigarette butt and a strand of DNA on a rope.
Nicola speaks to crime journalist Ju8797 with Gina McGavin tells the incredible story of one of Scotland’s most fascinating cold cases.
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Crime World