Crimes That Shook Britain

In this special episode, we focus on those criminals who have been brought to justice for one crime only to be released to commit further terrible acts.

One of the UK’s biggest sex trafficking rings was uncovered in Rochdale in 2012. In a horrific catalogue of abuse, girls as young as 13 were subjected to rape and torture by a gang of nine men.

With exclusive, first time access to Dennehy’s mother and father, we hear from the murderer’s parents and how the crimes of their daughter have shattered a family.

In 1985, PC Keith Blakelock was murdered during a riot on a housing estate in London, triggered after a black woman died of heart failure during a house search. Nobody has been brought to justice for his murder, despite three investigations.

Peter Tobin is one of the most notorious serial killers in the UK. From 1991–2006 he raped and murdered three young girls; Dinah McNicol, Vicky Hamilton and Angelika Kluk. Yet even prior to these horrific murders he had a history of violence.

John Sweeney brutally murdered two of his girlfriends, dismembered their bodies and dumped them in canals. In a macabre twist, he hid clues in his abstract paintings, and five other girlfriends of his are currently still missing.