A/N: This part was done with courtesy from: http://www.casebook.org/index.html
-The Story-
"Jack the Ripper" was the pseudonym given to the unknown killer of a killer of prostitutes in London of the late 1800's. People often thought he was apart of the royal family, or a politician, a person they couldn't mess with. The name originates from a letter written by someone who claimed to be the killer published at the time of the murders.
It is unclear just how many women the Ripper killed. It is generally accepted that he killed five, though some have written that he murdered only four while others say seven or more. The public, press, and even many junior police officers believed that the Ripper was responsible for nine slayings.
Ripper had sent letters to the Central News agency. One was sent to George Lusk, who was head of a vigilance committee in Whitechapel. Inside was half a human kidney and a letter from someone claiming to be the killer, and that it was part of the kidney he removed from the victim Eddowes. Mostly argued if it really was from Jack. However, Eddowes did suffer from Bright's disease and the description of the kidney does match what a Bright's disease kidney would look like.
Jack the Ripper was never identified...