Peter Studcliffe, the Yorkshire ripper, was convicted for the murders of 13 woman. Before the murders of these woman, Sudcliffe hard already had a criminal record for assaulting three woman; Anna Rogulskyj, Olive Smelt & Tracy Browne.His next victim was 28 year old Wilma McCan(30 October 1975) who was brutally murdered on the Prince playing Fields, Leeds. He struck McCan with a hammer before stabbing her 15 times in the neck, chest, and abdomen. One of McCan's daughters committed suicide in 2007 after years of torture over her mother's death.His next killing was in January 1976 when he stabbed Emily Jackson (42) 51 times in Leeds. Then hitting her in the head with a hammer and stabbing her with a sharpened screwdriver in the neck chest and abdomen.On the 9th of May in the same year he attacked Marcella Claxton, a 20-year-old, in Roundhay Park, Leeds, when she was walking home from a party when Sudcliffe gave her a ride. When she got out of the car to urinate, he hit her with a hammer from behind.After This is continued to murder 11 more woman these were, Irene Richardson, Patricia Atkinson, Jayne MacDonald, Jean Jordan, Yvonne Pearson, Helen Rytka, Vera Millward, Josephine Whitaker, Barbara Leach, Marguerite Walls and Jacqueline Hill. In April 1980 Sutcliffe was arrested for drink driving. While awaiting trial on this charge, was the time he killed Marguerite Walls (aged 47) on the night of 20 August and Jacqueline Hill (aged 20), a student at the University of Leeds, on the night of 17 November 1980. He also attacked two other women who survived: Dr. Upadhya Bandara (aged 34) in Leeds on 24 September and Theresa Sykes (aged 16) in Huddersfield on the night of 5 November. On 25 November, one of Sutcliffe's friends reported him to the police as a suspect, but this information vanished into the enormous volumes already created. Sutcliffe's friend assumed that they had investigated him and cleared him.On 2 January 1981, Sutcliffe was stopped by the police with prostitute Olivia Reivers (aged 24) in the driveway of Light Trades House, Melbourne Avenue, Broomhill, Sheffield. He was arrested, on grounds of having fitted his car with false number plates. He was transferred to Dewsbury Police Station in connection with this offence. At Dewsbury, he was questioned in relation to the Yorkshire Ripper case, as he matched so many of the physical characteristics known. The discovery the next day of a knife, hammer and rope he had disposed of at the time and place of his arrest along Melbourne Avenue and a second knife he had placed in the toilet cistern at the police station, having used the pretext of needing to urinate, increased police interest, and they obtained a search warrant for his home at 6 Garden Lane in the Heaton district of Bradford and brought his wife in for questioning.On 4th January 1981, Sudcliffe was declared the ripper. At his trial, Sutcliffe pleaded not guilty to 13 counts of murder, but guilty to manslaughter on the grounds of diminished responsibility. The basis of his defence was his claim that he was the tool of God's will. Sutcliffe first claimed to hear voices while working as a gravedigger, that ultimately would 'order' him to begin killing prostitutes. He claimed that the voices originated from a headstone of a deceased Polish man, Bronislaw Zapolski,and furthermore that the 'voices' were that of God.Sudcliffe was later then diagnosed with schizophrenia and was sent to Broadmoor Hospital, which where he remains today.
Many DNA evidence were left at the scenes of Sutcliffes crimes; fingerprints on body's