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, raping two 14-year-old girls and leaving them for dead. Luckily they survived. 

The tragic story of Ann Maguire, who was stabbed to death by a pupil while teaching a Spanish lesson at Corpus Christi Catholic College in Leeds.

Examining the murder of EastEnders actress Gemma McCluskie, who was killed by her older brother in the east London flat they shared in 2012.

An inside look at the series of mysterious deaths that occurred at the Stepping Hill Hospital in Stockport, Greater Manchester, in 2011.

A closer look at the crimes of Steve Wright, who was dubbed 'The Suffolk Strangler' after murdering five women in Ipswich in 2006.

A chilling look at the crimes of Stephen Port, the east London serial killer who poisoned four young men with lethal doses of a date rape drug.

Christmas Eve 2022, 26-year-old beautician Elle Edwards was enjoying a night out with friends and family in a local Merseyside pub. Shortly before midnight, she stepped outside for some fresh air. Minutes later, she was struck down in a torrent of machine gun bullets as the unintended victim of a gangland shooting. As the nation reeled from the breaking news on Christmas morning, Merseyside Police launched their biggest-ever murder investigation. But as they faced obstacles and delays, the local community had to break their wall of silence to help bring the killer to justice

In June 2020, as the country enjoyed a short respite from COVID restrictions, three men were fatally stabbed in broad daylight while chatting in the park. But the nation’s shock at the terrorist attack soon turned to anger, as details of the killer were revealed - he was known to be dangerous, volatile, and aggressive. As authorities had been warned that an attack was inevitable, this was a deadly terrorist attack that was entirely avoidable.

10-year-old Jack Lis was at his friend’s house when he was savagely attacked by a powerful and aggressive dog. Despite desperate attempts by first responders, his injuries were catastrophic. Jack’s death was one of the first in a series of deadly dog attacks that were sweeping the UK. With over 50,000 XL Bullies in the country, their massive size, strength, and potential for aggression created a wave of fear in communities. Following newspaper campaigns and public demands for action, dog owners feared a knee-jerk reaction that would punish innocent animals. But as the list of fatalities continued to grow, action had to be taken.

During the height of lockdown, families and friends were separated from their loved ones. The death of Shakira Spencer was the culmination of systematic cruelty at the hands of people she originally believed to be friends with. Separated from her family and even her own children, Shakira was tortured and abused during a time when people were rarely allowed to visit one another.

The brutal murder of 16-year-old Brianna Ghey shocked the world. The trans-teenager was a vulnerable victim, who lived almost her entire life online and found friendship in her thousands of social media followers. Brianna was manipulated by her killers, who posed as friends to lure her to her death. With the two offenders at large, the police investigation moved at speed to uncover shocking evidence of a cold and calculated murder.

A father/son trip to the capital ended in horror as 51-year-old Lee Pomeroy fell victim to a ferocious knife attack on a commuter train. Lee was brutally stabbed 18 times in 25 seconds and died in the arms of his 14-year-old son. The attacker, who was already known to the police and mental health workers, fled the scene as British Transport Police scrambled to track him down. Once apprehended, it was up to investigators to prove that Lee’s murderer was as unprovoked, as it was ruthless.

When a missing person is found dead in North London, investigators discover the sadistic killer has already struck before. Iuliana Tudos was a popular 22-year-old who disappeared on Christmas Eve. Her friends launched a frantic search and discovered her mutilated body themselves. In a shocking twist, the police were able to link her killer to an unsolved murder from weeks earlier – where a retired civil servant was found bound and gagged in her own bedroom.

When a young goth couple, Sophie Lancaster and Rob Maltby, were set upon by a ‘pack of feral thugs’, the vicious attack leaves eyewitnesses afraid to speak up. Despite the very public attack, a wall of silence falls around the offenders. Police investigators tried innovative tactics to gain the trust of the witnesses, but it was Sophie’s death two weeks later that shocked the close-knit community into action.

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Eight year-old Sarah Payne's disappearance and murder shocked the nation.

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. We speak to legal professionals to discover if the system is at fault or have these killers exploited legal loopholes. We talk to victims and relatives of killers who preyed on their loved ones – if the perpetrators had been kept inside – would their loved ones still be alive? And we discuss with campaigners what can be done to ensure the justice system can both rehabilitate but also ensure our safety.

Double murderer, John Sweeney, brutally murdered two of his girlfriends, dismembered their bodies and dumped them in canals. Handed two life sentences he was told he will die in prison. In a macabre twist, a key detective on the case tells how Sweeney allegedly hid clues to his killings in abstract paintings he produced, and how FIVE other girlfriends of his are currently missing as well.

Estate agent Stephanie Slater was abducted in 1992 whilst showing a man around a house. For eight days she was locked in a makeshift coffin, raped and tortured before remarkably being released after a £175,000 ransom was paid by her boss. In this episode Stephanie relives her experience, giving detailed accounts of the time as well as how her life changed after the incident. We also reveal an exclusive interview with her father and police who were involved in the case.

The unsolved murder of TV presenter and newsreader Jill Dando, who was shot outside her house in Fulham, London, in 1999.

Documenting the landmark case of Stephen Lawrence, who died at the hands of a racist gang on 22 April 1993 while waiting for a bus in Eltham, south-east London.

For the first time since the terror attack in May 2017, we hear from the survivors, victims' families and emergency responders about that tragic night.

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General Practitioner Harold Shipman was convicted of killing 15 patients in 2000. An official report after his sentencing took that figure to 215. He was sentenced to life in prison and committed suicide in his cell 2004. This exclusive documentary lifts the lid on the shocking discoveries made by his colleagues in early 1998; how police were alerted but the killer was left to murder three more women before finally being arrested in September 1998.

Myra Hindley and Ian Brady were convicted of murdering five young boys and girls between 1963 and 1965. Until 1985 both killers maintained their innocence, but eventually confessed and led police to all but one of the bodies – Keith Bennett, who remains missing until this day. We investigate the brutal murders through relatives and officers, and look into new information held by Bennett’s brother that could finally reveal his resting place.