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.

Harold Shipman: A profile of one of the most prolific serial killers in history. With an estimated victim-count of 250, what drove his horrific crimes?

Robert Napper: Known to some as The Plumstead Ripper, he was convicted of two murders, but his victim count is actually estimated to be much higher.

A profile of serial killer Dale Cregan, who was sentenced to life in prison after the senseless murders of two men and two police officers in 2012.

The story of 21-year-old Anthony Arkwright from South Yorkshire, who in 1988 went on a killing spree in which he murdered three people - including his own grandfather.

A profile of the cold-blooded killer John Sweeney, nicknamed the Canal Killer due to the places he dumped the body parts of his victims.

A look at the crimes of Andrzej Kunowski, a man so vicious he was nicknamed the Beast after raping and murdering a 12-year-old girl in 1997.

The story of Hartlepool man Arthur Hutchinson, who achieved notoriety in 1984 when he broke into a Sheffield home and took the lives of three family members in a senseless killing.

Peter Moore, the killer dubbed 'The Man In Black', a murderer who took the lives of four innocent men for fun.

A profile of the double-killer who branded himself the 'Angel of Mercy', after murdering two of his neighbours in cold blood.

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.