The identity of the killer of five women in the East End of London in 1888 has remained a mystery, but the case has continued to horrify and fascinate.
Between August and November 1888 the Whitechapel area of London was the scene of five brutal murders. The killer was dubbed 'Jack the Ripper'. All the women murdered were prostitutes, and all except for one - Elizabeth Stride - were horribly mutilated.
The first murder, of Mary Ann Nicholls, took place on 31 August. Annie Chapman was killed on 8 September. Elizabeth Stride and Catherine Eddoweson were murdered 30 September and Mary Jane Kelly on 9 November.
There has been much speculation as to the identity of the killer. It has been suggested that he or she was a doctor or butcher, based on the evidence of weapons and the mutilations that occurred, which showed a knowledge of human anatomy. Many theories have been put forward suggesting individuals who might be responsible. One theory links the murders with Queen Victoria's grandson, Prince Albert Victor, also known as the Duke of Clarence, although the evidence for this is insubstantial.
Violence to prostitutes was not uncommon and there were many instances of women being brutalised but the nature of these murders does seem to suggest a link between the perpetrators.
A quarter of a mile from the scene of Catherine Eddowes' murder, the words 'The Juwes [sic] are not the men to be blamed for nothing,' were found scrawled on a wall in chalk, and it was suggested this was written by the killer. A police officer ordered the words to be removed, fearing an anti-Semitic backlash in an area with a large Jewish population. The murderer is also sometimes thought to have made contact by letter with several public figures: these letters, however, like the chalk message, have never been proved to be authentic, and may have been hoaxes.
"Jack The Ripper" is the name given to unknown killer due to correspondence at the time from someone claiming to be the killer signed with that name. But while the murders were taking place, the assailant was know as the Whitechapel Murder or "Leather Apron."
There is some dispute concerning how many victims Jack The Ripper claimed. Some believe that he killed only four prostitutes during his spree, while others think that he may have killed as many as nine. It is generally accepted that there were five victims.
Jack The Ripper Letters
Hundreds of letters claimed to have been written by the killer himself. Nearly all such letters are considered hoaxes, and many experts contend that none of them are genuine, but of the ones cited as perhaps genuine by either period or modern authorities, three in particular are prominent:
The "Dear Boss" letter, dated 25 September, postmarked and received 27 September 1888, by the Central News Agency, was forwarded to Scotland Yard on 29 September.
The "Saucy Jacky" postcard, postmarked and received 1 October 1888, by the Central News Agency, had handwriting similar to the "Dear Boss" letter. It mentions that two victims were killed very close to one another: "double event this time", which was supposed to refer to the murders of Stride and Eddowes.
(From Hell Letter) The "From Hell" letter, also known as the "Lusk letter," postmarked 15 October and received by George Lusk of the Whitechapel Vigilance Committee on 16 October 1888. Lusk opened a small box to discover half a human kidney, later said by a doctor to have been preserved in "spirits of wine" (ethanol). One of Eddowes' kidneys had been removed by the killer.
Jack the Ripper was never caught and he is not thought to have killed again after November 1888.
Reference : Philip Sugden, The Complete History of Jack The Ripper