Gavin McGuire _ World_s Most Evil Killers

"He was a sexual predator who slipped through the system for years. When he was finally released on a legal technicality, he killed 16-year-old Mhairi Julyan just 19 days later."Gavin McGuire had a long history of sexual violence, including rape and attempted murder. After being freed on a technicality, he murdered Mhairi Julyan, a young girl walking home from a pantomime in December 1995. Her body showed 47 injuries. McGuire was sentenced to life with a 30-year minimum. The case exposed failures in the Scottish justice system and led to calls for reform.