Britain's Most Evil Killers
Sky Mix
Thursday 3 September 2026 22:00 - 23:00 (60 mins)
Gavin McGuire: When 16-year-old Mhairi Julyan was killed, detectives used cutting edge forensics before closing in on Gavin McGuire - a repeat sexual offender. (S9, ep 2) [S]
Britain's Most Evil Killers may be available on Prime Video (affiliate link)
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