Serial killer Levi Bellfield, who murdered 13-year-old Milly Dowler. Family and friends offer an insight into his life and career
Friends and family of Derrick Bird reflect on the life of the Cumbrian killer, who shot his brother and 23 others before turning the gun on himself in June 2010
Friends and family of Delroy Grant discuss the life and crimes of the serial rapist, who cared for his disabled wife throughout the day, but preyed on women during the night
Those who knew Antoni Imiela offer insight into the private life of the serial rapist. He had terrorised girls and women in the M25 area between 2000 and 2002, resulting in the police creating a special unit to catch him.
This story marks the first of a litany of child abuse scandals that rocked the Catholic Church. No one stood more respected in his community than Father Ivan Payne. A master of deception he terrorised children for three decades.
Former friends of Peter Moore offer a glimpse into the dark double life of the Welsh serial killer, who murdered and mutilated four men in 1995
William Jordan was a Bigamist, conman and paedophile. His wives Mary and Michelle thought he was a CIA agent fighting global terrorism. In reality he was an IT wiz kid working for the British government.
The people who knew Beverley Allitt offer an insight into the motivations of the serial killer, who murdered four patients at Grantham and Kesteven Hospital in 1991
Those who knew crossbow killer Stephen Griffiths reveal their horror at discovering he had murdered three women and even eaten parts of their bodies.
A profile of right-wing extremist Anders Breivik, who killed 69 people on Utoya island, Norway, in 2011, less than two hours after setting off a bomb in Oslo
The crimes and motivations of serial killer and journalist Vlado Taneski, who was arrested for murdering three women after releasing details of the crimes.
Examines the harrowing story of Ipswich killer Steven Wright, the so-called Suffolk Strangler, who murdered five prostitutes in 2006. Conrad Wright, the father of the serial killer, discusses his son's life and possible motivations for the murders.
The friends and family of serial killer Anthony Hardy reveal the shock they felt on discovering he murdered three women in north London in 2002.
Friends and relatives of Michael Sams offer an insight into the life of the criminal, who murdered Julie Dart in 1991 and held Stephanie Slater for ransom in 1992.
Friends and relatives reflect on the motivations of Peter Chapman, who posed as a teenager on a social networking site to kidnap and murder Ashleigh Hall.
Documentary examining the case of Vanessa George, the Plymouth nursery worker who made headlines when she was jailed for sexually abusing children in 2009. Part of a ring of paedophiles, the married mother had used her mobile phone to record her activities
People who knew Bradley Murdoch offer an insight into the mind of the Australian who killed British backpacker Peter Falconio in 2001.
Documentary on the mind and psyche of a jealous boyfriend who killed his 17-year-old girlfriend in Dorset in 2011, before asking his parents to cover up his crime.
A look at the violent crimes and psyche of David Baxendale, who stabbed 38-year-old Sarah Thomas in Redhill, Surrey, in 2010, before attempting to flee to Spain.
Documentary exploring the murders committed by Alfredo Galan, one of Spain's most prolific serial killers, who claimed six victims, each time leaving a playing card by their bodies.
A profile of Australian murderer Leigh Robinson, who killed two women in 1968 and 2010 but could not escape the long arm of the law indefinitely.
Documentary exploring the story of New Delhi serial killer Surinder Koli, who offered starving children sweets before abusing and murdering them.
Hard-hitting documentary exploring the violent history of serial rapist and murderer Pedro Jimenez, who killed two young policewomen in Spain in 2004.
A look at the crimes and prison correspondence of Mark Shirley, who was jailed for a series of sadistic sexual assaults and stabbings.
Documentary exploring the murder of Shafilea Ahmed, who was suffocated by her parents in Cheshire in 2003. Detectives faced a difficult task determining their motive.
The friends and family of Jason Alexander Downie open up about the British expatriate, who killed a young woman and her parents in a vicious attack in Australia in 2010.
The death of 15-year-old Italian teenager Sarah Scazzi in Puglia, whose mother was controversially informed of her daughter's murder live on national TV.
The story of Italian teenager Erika De Nardo who, with the help of her boyfriend, murdered her mother and younger brother in Novi Ligure in 2001.
A look at the case of Lea Garofalo who was murdered by her Italian mobster ex-partner Carlo Cosco after she dared to give evidence against him and his brutal Ndrangheta gang.
The story of the jealous husband who pulled out a knife on his estranged wife's lover in front of commuters at a busy train station in Bologna in 2012.
The story of the disturbed Italian killer Danilo Restivo, who was sentenced to life for murdering Heather Barnett at her home in Bournemouth in 2002.
A teenage girls disappears on the way to the beach, a TV campaign creates a national obsession: Where is Sarah? One of Italy's best known crime programmes arranges a broadcast linking the viewers to a discussion live from Sarah's family home. And then, in front of millions, Sarah's mother is told the breaking news - the body of her daughter has been found. Amazingly, she is led away in front of the cameras. Italy knew Sarah Scazzi was dead but what they were about to learn was the parts played in her death by her cousin, uncle and aunt. A tragic private family affair was about to be played out in front of an entire country.
Erika was a truculent teenager, her boyfriend, Omar, besotted by her. But everything seemed normal in the home of the De Nardo family in a small town in Northern Italy. Dad worked as an engineer, Mum as an accountant whilst Erika and her little brother, Gianluca, went to school. Nobody could know that Erika and Omar were plotting to slaughter mother, Susanna, and father, Francesco, before setting up home as parents to little Gianluca. But as Susanna returned home one evening, Erika and Omar first knifed Erika's mother to death and then chased Gianluca around the home. As he hid in the locked bathroom, they decided he too had to die. He had seen too much. The double-killers fled the scene claiming a burglary and murder by immigrants. But tell-tale, bloody footprints hinted at the truth of what had happened when Erika and Omar became the teenage killers.
Lea Garofalo wanted out from the world of the Calabrian mob known as the Ndrangheta. The Ndrangehta are perhaps the most unforgiving of the Mobs of Italy. One wrong word from a family-member and they run the risk of the ultimate punishment. That code of honour was to come back to haunt Lea as she turned state's evidence against her partner and father of her daughter, Denise. She hid in witness protection for years feeling imprisoned by her lack of freedom. Naively believing she could persuade her former man, Carlo Cosco, to forgive so both could be parents to her daughter, she agreed to a meeting. Hours later, she had disappeared. Bravely, her daughter refused to back way from getting her mother justice and today she too is in witness protection having testified against her father and the might of the Ndrangehta.
It's the oldest story in the world of murder; the love triangle. This one was played out in front of a crowded commuter platform in Italy's beautiful city of Bologna. Captured on camera, a jealous husband followed his wife, Giuliana, from her train and across the central railway station. Also captured on security cameras, his wife's lover, Alessandro, arriving for the romantic get-together. Neither he nor Giuliana even suspected Sergio Ucciero might be there. Sergio and his wife had been estranged for five years. She felt entitled to a new friendship. In fact, her lover and she were at the start of their relationship when Ucciero, with a knife hidden in a newspaper, pounced to murder on platform one.
His family knew him to be strange. Odd things happened wherever he went. Women found a lock of their hair snipped from them, without warning, by a man sitting nearby. He would then melt into crowd. Danilo Restivo, an ugly man, persuaded a church-regular to meet him after Mass one Sunday in the Italian town of Potenza. Elisa Claps disappeared soon after. Her body was to lie for 14 years in the church belfry as Italy probed the mystery of what happened. Restivo, with his family helping him launder the clothes he had worn the day he met Elisa, left for England and Bournemoth suddenly heard of women complaining of a man who had snipped a lock of their hair. Two children found the horrifically mutilated body of their mother, Heather Barnett. Only then did the truth about the fetishist Restivo begin to unravel.