Murdered by her parents: The 'honour killing' of Shafilea Ahmed

Why was Shafilea Ahmed murdered by her own parents? Explore the murder of a young girl by the people she trusted the most.

Killer Britain with Dermot Murnaghan Episode Ten: Michael Sams

Michael Sams stopped at nothing to make more money, including abducting women and holding them to ransom.

Killer Britain with Dermot Murnaghan Episode Nine: Iftikhar and Farzana Ahmed

Iftikhar and Farzana Ahmed were found guilty of murdering their 17-year-old daughter Shafilea.

Killer Britain with Dermot Murnaghan Episode Eight: Ben Geen

While working as a nurse, Ben Geen injected 17 patients with a mixture of drugs, killing two of them.

Killer Britain with Dermot Murnaghan Episode Seven: Elliot Turner

The seventh episode reflects on the savage strangling of 17-year-old Emily Longley at the hands of her boyfriend in his family home in Bournemouth.

Killer Britain with Dermot Murnaghan Episode 5: 'The Suffolk Strangler'

Steven Wright murdered five women in Ipswich in 2006 and sparked the biggest investigation and manhunt in Suffolk police history.

Watch Killer Britain: Series 4 trailer

In this extended 11 episode run, Dermot Murnaghan will guide viewers through some of the most deeply shocking crimes of recent times.

Top highlights from Killer Britain: Series 4

Five things that everyone can look forward to in the fourth season of Killer Britain with Dermot Murnaghan. 

Killer Britain with Dermot Murnaghan Season Four: Episode Guide

Killer Britain with Dermot Murnaghan returns for its fourth season, documenting 11 of the most horrific crimes in British history

Killer Britain with Dermot Murnaghan

Killer Britain with Dermot Murnaghan explores British murder stories filled with detective intrigue and chilling storylines of homicide and hate

Violent stabbings shake Salford to its core - Killer Britain with Dermot Murnaghan

When there's a double murder in the heart of Salford, Police are convinced it stems from a long running feud between rival gangs

This madman was obsessed with becoming a serial killer - Killer Britain With Dermot Murnaghan

Mark Martin had a gruesome reputation in Nottingham. Known for his violent temper and crooked disposition, if he was on one side of the city you'd be best off moving to the other

Mob leader's deadly threat backfires - Killer Britain With Dermot Murnaghan

We tell the true story of Mark Fellows, and the persistence and ingenuity that brought the feud to an end.

Killer hides mistress in his family's shed - Killer Britain With Dermot Murnaghan

The twisted case of Harry Jarvis, who murdered his wife, Carol Jarvis, and tried to conceal his crime by hiding her body under the floorboards in their home.

Nurse at Oxfordshire hospital was given 17 life sentences - Killer Britain With Dermot Murnaghan

The story of Ben Geen, who was convicted of murdering the patients in his care at Horton General Hospital.

Serial killer fanatics created horror film in real life - Killer Britain With Dermot Murnaghan

The story of serial killer-obsessed Nathan Maynard Ellis and his partner, who lured Julia Rawson back to his 'flat of horrors'.

Mum told her son to turn himself in to the police - Killer Britain With Dermot Murnaghan

Dermot revisits the case of Mark Jewitt, who viciously attacked and killed his neighbour Vera Hudson in Hull.

Women were told to stay off the streets because of this man - Killer Britain With Dermot Murnaghan

Steven Wright dubbed ‘The Suffolk Strangler’ caught detectives in a game of cat and mouse for nearly six weeks in which he murdered his victims.

Opportunist killer murders university student - Killer Britain With Dermot Murnaghan

Libby’s body was found seven weeks after the attack in which Relowicz killed and dumped her body in the River Hull.

'Girlfriend' blackmails millionaire but pays the price - Killer Britain With Dermot Murnaghan

When the relationship turned sour, Peter Morgan began plotting his revenge.

Young gamer groomed into his own shocking death - Killer Britain With Dermot Murnaghan

Breck Bednar was seduced by the world of online gaming and didn’t see the dangers when an older teen made lucrative job offers.

Delusional killer murders au pair over her ex celebrity lover - Killer Britain With Dermot Murnaghan

Sabrina Kouider couldn't have lived such a glamorous lifestyle without the help of Sophie Lionnet, the young French au pair who looked after her children.

Killer neighbour used CCTV to his sinister advantage - Killer Britain With Dermot Murnaghan

The murder of 25-year-old Joanna Yeates sparked one of Bristol's biggest murder investigations ever.

Catfish 'Grindr Killer' thought he could get away with murder - Killer Britain With Dermot Murnaghan

Labelled the ‘Grindr Killer’, Stephen Port murdered four men after meeting his victims online via social networks.

Serial killer fanatic lives out murderous dream - Killer Britain

The story of serial killer-obsessed Nathan Maynard Ellis and his partner, who lured Julia Rawson back to his 'flat of horrors' and cruelly took her life.

Nottingham serial killer targeted homeless women - Killer Britain

From 'Peeping Tom' to killer: The murder of Libby Squire

21-year-old Libby Squire was murdered by Pawel Relowicz, a man who had previously been reported to police for a number of sexual crimes.

Dermot Murnaghan: Killer Britain Interview

Dermot Murnaghan returns to investigate five shocking British murder cases