

David Smith, 66, is on trial for the murder of Sarah Crump, 33, who was found dead at her one-bedroom flat in Southall, west London on August 29, 1991.
Jurors at Inner London crown court heard Smith developed âfascinations and obsessionsâ with some of the women he paid for sex, and he has a history of violent offending.
In 1999 - eight years after he is accused of murdering Ms Crump - Smith killed 21-year-old Amanda Walker, another sex worker.
Prosecutor William Boyce KC said the killings had similarities as âboth women were mutilated after deathâ.
Smith raped a young mother at knifepoint in her own home in 1976 and tried to rape an escort just 10 days before Ms Crumpâs murder, in what Mr Boyce described as âan escalating pattern of violent and sexual offendingâ stretching back to his teenage years in the 1970s.
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The court heard Ms Crump was a secretary in the chiropody department in Wimbledon Hospital, south-west London and had a previous career as a psychiatric nurse, but she also worked âfrom time to timeâ as an escort.
Smith, who lived with his parents in Hampton, Middlesex, and made local deliveries for a firm in Heathrow, regularly used sex workers with the âintensityâ becoming more frequent in the period leading up to Ms Crumpâs murder, the court heard.
âHe was someone who developed fascinations and obsessions with some of the women he met in this way,â said Mr Boyce.
âThe prosecution alleges that David Smith murdered Sarah Crump and he had visited her flat on August 28 to use her services as an escort girl.
âHe used a false name, âDuncanâ.
âHe was the last person known to be inside Ms Crumpâs flat before she was discovered to be dead.
âHe was there as a paying visitor. For such a visitor, she would have taken off her clothes and lain on the bed where she was found.â
The court heard Ms Crumpâs naked body was found âbrutally mutilatedâ with the incisions similar to the surgical scars of a woman Smith had âbecome obsessed withâ and ârejected his attentionsâ.
âThe motivation was clearly, you may infer, sexual and violent,â said Mr Boyce.
Details of Smithâs offending have been put before the jury, including the 1976 knifepoint rape, an attempted rape of an escort on August 18 1991, and Ms Walkerâs murder where her body suffered âsubstantial mutilationâ after death.
âThe murder of Ms Crump was one part in a timeline of escalating violent and sexual offending against women by the defendant, which stretched from his teenage years in the mid-1970s, until his commission of the murder of another sex worker in 1999â, said Mr Boyce.
âThe prosecution say that the evidence of that offending is highly probative of the prosecutionâs case that it was this defendant, and no-one else, who was responsible for the murder of Sarah Crump.â
Smith denies a single charge of murder and the trial continues.