There were no signs; there was no warning. England's most feared killer was hidden behind a veil of normality.

The eldest of six children, Peter Sutcliffe was a reserved and timid child who would cling to his mother's apron strings for security. At school Peter struggled, and by the time he was fifteen he left in favour of independence, working menial jobs to support himself - even trying his hand at gravedigging and lorry driving. It was at this point that Sutcliffe began to change.

Beginning in 1975 and ending with his arrest in 1981, Peter Sutcliffe travelled the north of England frequently for work, never stopping in one place for too long. This lifestyle allowed him to evade capture viciously murdering 13 women, bringing fear and trepidation to Yorkshire and England as a whole.

During his years of terror he became known simply as the Yorkshire Ripper.

A married man who no one suspected, would go out at night, on what he believed to be a mission from God, seeking out prostitutes to murder. By using a ball peen hammer he would render them unconscious from behind and stab them multiple times with a knife or sharpened screwdriver.

When he attacked a young student, brutally murdering her in the same manner, police and citizens alike knew that no one was safe. Captured by a stroke of good fortune, Peter Sutcliffe, still living, now calls Broadmoor Hospital home having been found guilty of 13 murders and seven attempted murders, never to be free to kill again.