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Expert Witness

Series 2

Murder in the Suburbs and Search for a Serial Killer

Duration: 28 minutes

on BBC One Cambridgeshire HD

Available for 6 months

A fibre analyst helps convict the killer of grandmother Maureen Cosgrove, and how forensic evidence was used in the case of serial child killer Robert Black 40 years ago. Show more

BBC One Cambridgeshire HD

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