KTV

The story of the Austrian serial killer Jack Unterweger, who was heralded as an example of successful rehabilitation, only for him to kill again.

Deadly Deceit: The chilling story of Wendy Mann, whose life was taken in a jealous frenzy by her ex-partner and the father of her three children in 2015.

Crime scene investigators examine the tragic death of rising rap star XXXTentacion.

Who was the killer dubbed 'The Man In Black'? This is a look at the murderer who took the lives of four innocent men 'for fun'.

Action-packed documentary following rapid response officers, the fastest cops in Britain, as they crack down on crime. Time is of the essence.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

The Thames Valley Police provide a fascinating insight into car crime and its prevention. Plus, shocking video footage captures dangerous drivers in action. Strong language.

Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

Documentary series charting the exploits of the City of London police, charged with safeguarding the Square Mile at the heart of the crime-ridden capital.

A look the savage killer who murdered his own grandfather and two others in 56-hour blood-soaked killing spree.

When Joy Boulton is found dead at home, her fiancé Trevor quickly becomes a suspect - before police uncover a tale of love, jealousy and revenge.

The investigation of a murder of a mother in her home in 1994, as police used forensic clues to find an appalling killer.

From 1979 to 1981, at least 28 children were murdered after vanishing from Black neighborhoods of Atlanta, sparking terror in the community.

... The Nation. Ruth Ellis - Last Woman Hanged: In 1955, Ruth Ellis hanged for the murder of her estranged lover. But what would her punishment have been today.

A Deadly Hangover: When his parents criticised him for his idle behaviour, Daniel Dighton stabbed them to death before blaming his crime on a hangover.

When mother of two Zobaidah Salangy went missing, her husband Nezam reported her missing - but he held a dark secret.

A profile of the triple-murderer who killed his ex-girlfriend, her nine-year-old daughter and another man in a brutal attack.

The tragic case of 22-year-old Helen McCourt, who got off a bus one night in her hometown but never arrived at her nearby home.

In 2010, Sarah Thomas was stabbed to death in her home. The killer fled abroad and changed his identity. Finally recognised, the truth came to light.

When the body of a Lithuanian immigrant is discovered, detectives are faced with uncovering how she died and who is responsible for her death.

When a mum goes missing, her family uncovers alarming clues. As police probe, shocking twists emerge, leading to a tragic collision of two worlds.

Sutton details the investigation into a long-running feud between neighbours that took a deadly turn.