Britain's Most Evil Killers: Season 9, Episode 2

9 - 2: Gavin McGuire

An investigation into the death of Mhairi Julyan, a 16 year-old from Kilmarnock, Scotland, who was found dead in a bus depot in 1995 with 47 separate injuries to her head, body and limbs after being strangled and sexually assaulted by Gavin McGuire.