A closer look at the murderer Stephen Seddon, a convicted fraudster who killed his parents in a cold-blooded crime as he tried to get his hands on their £230,000 estate.

The Suffolk Strangler. Steve Wright brutally killed five women over a six-week period in 2006. He is unquestionably one of Britain's Most Evil Killers.

The Yorkshire Ripper. Examining some of the UK's most prolific killers. Peter Sutcliffe's five-year killing spree claimed 13 victims.

Ian Huntley murdered two 10-year-old schoolgirls in a case that shocked the nation and changed the course of British policing.

Between them, Fred and Rose West killed at least 12 girls over two decades in Gloucestershire. What fuelled their appetite for murder?

Levi Bellfield was already in prison for killing two women when he was found guilty of murdering schoolgirl Milly Dowler in 2002.

The first woman in British history to be given a whole life sentence, Joanne Dennehy's 2013 rampage saw her murder three men and attack two more.

The Crossbow Cannibal: A chilling look at Stephen Griffiths, who in 2009 viciously murdered three women - one in blatant view of a CCTV camera.

A look at the north London serial killer Dennis Nilsen, who murdered at least 12 men before being caught when he began flushing remains down the toilet.

When Tia Sharpe disappeared, Stuart Hazell helped police search for her. But in reality he'd murdered the 12-year-old schoolgirl.

When Peter Tobin was convicted for raping and murdering a Polish student in 2006, further investigation linked him to two more murders.

30 years after the tragedy in Hungerford took place, we recall the events of 19 August 1987 where killer Michael Ryan claimed 16 lives and his own.

Nurse Beverley Allitt poisoned 13 children under her care, killing four of them, earning her the nickname "The Angel of Death" from the British media.

An examination of Mick Philpott, the notorious Derby father of 17 who murdered six children, five of them his own, when he set his own home on fire.

In 2012, April Jones disappeared from outside her home in Wales, never to be seen again. Her abductor, and murderer, was found to be Mark Bridger.

Dubbed "the Grindr Killer", serial rapist Stephen Port murdered at least four men by using gay social networks to find his victims.

The story of Raoul Moat, who shot his ex-girlfriend, her new lover and a policeman, leading to the largest manhunt in modern British history.

New. Roy Whiting: A profile of child killer Roy Whiting, the convicted sex offender who abducted and murdered eight-year-old Sarah Payne.

A profile of the two murderers who terrorized Britain in the 1980s with a string of attacks near railway stations.

A profile of former aspiring model Tracie Andrews, who stabbed her fiance 42 times in 1996 and then blamed the attack on a fictional road rage assailant.

The story of Steven Grieveson, the so-called `Sunderland Strangler', who murdered four teenage boys before his capture.

The case of the cannibal killer Stefano Brizzi, who murdered and consumed part of a police officer he met through a dating app.

Profiling the Italian killer, jailed for murdering and mutilating his Bournemouth neighbour, Heather Barnett, in 2002.

A chilling look at a man responsible for one of the biggest police investigations in Bristol - the cold-blooded murder of Joanna Yeates.

A look at the Scottish serial killer who preyed on young girls between the ages of five and 11 throughout a six-year killing spree.