Jack the Ripper
Overview
"Jack the Ripper" is the best-known name given to an unidentified serial killer
Serial killer
A serial killer, as typically defined, is an individual who has murdered three or more people over a period of more than a month, with down time between the murders, and whose motivation for killing is usually based on psychological gratification...

 who was active in the largely impoverished areas in and around the Whitechapel
Whitechapel
Whitechapel is a built-up inner city district in the London Borough of Tower Hamlets, London, England. It is located east of Charing Cross and roughly bounded by the Bishopsgate thoroughfare on the west, Fashion Street on the north, Brady Street and Cavell Street on the east and The Highway on the...

 district of London in 1888. The name originated in a letter
Dear Boss letter
The "Dear Boss" letter was a message allegedly written by the notorious Victorian serial killer known as Jack the Ripper. It was postmarked and received on 27 September 1888, by the Central News Agency of London. It was forwarded to Scotland Yard on 29 September.The message, like most alleged...

, written by someone claiming to be the murderer, that was disseminated in the media. The letter is widely believed to have been a hoax, and may have been written by a journalist in a deliberate attempt to heighten interest in the story.
 
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