Chasing a Killer: Gary Allen

Episode 1

In February 2000 Gary Allen walked out of court a free man after being acquitted the murder of Samantha Class. When he later confessed in an undercover police sting that he had been responsible, their hands were tied as he could not be prosecuted twice for the same crime. A legal breakthrough paved the way for change but in April 2019 a second woman was found murdered. This astonishing documentary series tells the story of a two-decade police investigation and landmark legal change that finally brought a killer to justice.