Watch S9, EP2: Gavin McGuire with Fubo for $0 Today
Teen Mhairi Julyan was murdered, and forensics led police to violent repeat offender Gavin McGuire.
Teen Mhairi Julyan was murdered, and forensics led police to violent repeat offender Gavin McGuire.
How to watch
More episodes
World's Most Evil Killers
S9, EP12 "William Devin Howell"Gardener William Howell used his van as a "murder mobile," killing women and dumping bodies.
World's Most Evil Killers
S3, EP18 "Christopher Halliwell"Christopher Halliwell's found guilty of murdering two women.
World's Most Evil Killers
S6, EP2 "Jamie Reynolds"A 23-year-old killer murders 17-year-old former head girl Georgia Williams in 2013.
World's Most Evil Killers
S10, EP1 "Gregory Green"In 1991, Gregory Green stabbed his first wife to death, killing not only her but also their unborn child.
World's Most Evil Killers
S10, EP20 "Barry Prudom"In 1982, Barry Prudom sparked Britain's largest ever manhunt, murdering police officers and civilians.
World's Most Evil Killers
S10, EP19 "Paul McNaughton"In August 2022, retired teacher Peter Coshan vanished after meeting a man through a dating app in Edinburgh.
World's Most Evil Killers
S10, EP18 "David Baxendale"In May 2010, mother of three Sarah Thomas was stabbed to death in her Surrey home.
World's Most Evil Killers
S10, EP17 "Tariq Rehman"In February 1995, the city of Bradford in West Yorkshire was shaken to the core by the murder of two children.
