A woman who went undercover with detectives after her fiancé confessed to killing a cyclist has told Sky News she fears he will hunt her down one day.
Caroline Muirhead single-handedly helped solve the mystery surrounding Tony Parsons who vanished near Bridge of Orchy in Argyll and Bute during a 103-mile solo trek through the Scottish Highlands in September 2017.
After three years of frantic police searches, involving mountain rescue teams, the investigation came to nothing.
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