KTV

Meet the perpetrator of one of the worst firearm crimes in British history. After brutally killing 12 people in Cumbria, he then turned the gun on himself.

The murder of Kayleigh Dunning sparks an inquiry into stolen intimate videos, a past lover and a revelation that shocks her entire community.

Howell Donaldson III: The Tampa area of Seminole Heights is gripped by terror after shootings claim the lives of four innocent victims.

Ex-detective Colin Sutton revisits the murder of Ronnie Cook, killed by his lover who was later dubbed 'the Black Widow'.

A Special Constable gets an unpleasant introduction to frontline policing. Officers respond to an urgent call in Newcastle's city centre.

Adrenaline-fuelled documentary following Britain's police. This week's fix sees them tackling robbers, prostitutes and speed merchants in the West Country.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they keep the roads safe.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they keep the roads safe.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

A city centre bus collision leaves a pedestrian fighting for her life. Freezing temperatures turn an A1 slip road into an ice rink.

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.

This observational documentary returns for a fifth series following the Thames Valley Police. Officers hit the jackpot in Slough's biggest ever drugs raid. Strong language.

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

Strap in for our blockbuster-level finale. From stormy weather to cinematic car smashes, we've got it all caught on camera.

After a man is locked in a storeroom in a burning building, the race is on to identify those who started the blaze. But a closer look uncovers bigger issues.

John Duffy and David Mulcahy: A profile of the two murderers who terrorised Britain in the 1980s with a string of attacks near railway stations.

The Mum Who Never Came Home: After Michelle Gunshon disappeared, police found CCTV footage showing her with a mystery man. They tracked him down, but where was she.

In 2022, the body of Frankie Fitzgerald was found. Soon after, details filter emerged of a toxic relationship and a serial killer obsession.

See how police used CCTV to trace the perpetrator of a crime that shocked the nation - the murder of teacher Sabina Nessa in London.

A profile of serial killer Donald Henry Gaskins who murdered more than a dozen people in South Carolina in the 1970s before being apprehended.

It took 18 years to identify Melissa Halstead after her torso was found in a Rotterdam canal. But detectives never stopped working to catch her killer.

Four vicious murders put Mark Hobson at the centre of a nationwide manhunt as he became Britain's most wanted man. This is his story.

When mum of three Eileen Jawczak was murdered, clues were minimal. Could police link her death to the Rochdale Ripper.

New & Exclusive. Through newly revealed, no-holds-barred interviews, delve deep into the mind of New York's most prolific serial killer.

A look at the Welsh serial killer known to some as The Wildman, who got four life sentences for a string of gruesome murders and sexual assaults.

When a mother of two is found stabbed to death at her home in Olton, West Midlands in July 12, 2020, it appeared to be a burglary gone wrong.