A profile of the man who murdered his wife, two children and two dogs on one terrifying day.

A profile of the killer who, after killing 22-year-old Julie Hogg, became the first person to be convicted under revised UK double-jeopardy laws.

A look at the man convicted of sexually assaulting and murdering two nine-year-old girls from Brighton in 1986.

A look at the twisted killer who tortured and murdered a man in his home, filming the whole ordeal before torching the flat to cover his tracks.

The horrifying story of a woman who murdered her own sister in a brutal attack, after developing a deadly obsession with her brother-in-law.

A profile of the double-murderer who killed a 77-year-old teacher and 59-year-old reverend in two frenzied attacks

The life and crimes of Victor Farrant, who, upon being released from prison for rape and GBH, struck again - only this time his victim did not survive

The crimes of Colin Pitchfork, who took the lives of two 15-year-old girls and became the first person to be convicted of murder based on DNA fingerprinting evidence.

The shocking story of Kenneth Regan and William Horncy, the men who murdered a millionaire and three generations of his family in a vicious, greed-fuelled attack.

The story of Ali Qazimaj, the double murderer who was found guilty of the brutal assassination of an elderly couple.

The story of Stuart Campbell, who was convicted of the murder of his 15-year-old niece in 2002, even though her body has never been found.

The story of Trimaan Harry Dhillon, who attacked his ex-girlfriend in a jealous frenzy and committed a brutal murder after a campaign of harassment.

The story of Jamie Reynolds, the 23-year-old killer who murdered 17-year-old former head girl Georgia Williams in 2013.

British killer Daniel Gonzalez, also known as the Freddy Krueger Killer, who took four lives during a chilling two-day murder spree in 2004 after being inspired by horror films. He eventually commited suicide in his room in Broadmoor Hospital.

A family's worst nightmare occurs when 16-year-old Becky Watts goes missing, and is found dead days later, murdered by her own stepbrother.

The crimes of John Cannan, a dangerous sexual predator who murdered one young woman just days after his release from prison, and is suspected of many others.

A fugitive from the United States, David Bieber, murders one British police officer and tries to kill two more, sparking a nationwide search.

Jailed for the dreadful murder of a children's author, Ian Stewart receives a second conviction for the killing of his wife six years earlier

The crimes of Zahid Zaman. On the surface, he portrayed himself as a pillar of the community, but the true story of this cult killer was deeply sinister

Thirty-two years later, a convicted killer serving life for manslaughter is found to be guilty of having committed a second murder.

A master manipulator is accused of the murder of his wife, and is eventually caught out by a polygraph test - and his own fiancée.

When Carol Jarvis vanished, doubts grew over her husband Harry's story - and sinister letters he sent his mistress did little to support his lies.

In 2003, Jane Longhurst vanished. Her body was found weeks later and police soon closed in on Graham Coutts, who Jane had planned to meet.

After killing his two children, Jordan Monaghan played the grieving father well. But a third death in 2019 saw detectives finally close the net.

After killing Billy Bryan and Annie Castle, Danville Neil escaped justice for 30 years, but advances in forensics eventually caught up with him, helping to convict the murderer in 2020.