On October 15th of 1888, the following chilling letter was sent to a Mr George Lusk by someone claiming to be Jack the Ripper, along with a small box, the contents of which was later determined to be half a human kidney preserved in wine — Catherine Eddowes, Jack the Ripper's fourth victim, was thought to be the organ's previous owner. According to the note, the remainder of her kidney had been fried and eaten.
Transcript follows.
(Source: Casebook: Jack the Ripper; Image: George Lusk, via Wikipedia.)
Transcript
From hell
Mr Lusk,
Sor
I send you half the Kidne I took from one women prasarved it for you tother piece I fried and ate it was very nise. I may send you the bloody knif that took it out if you only wate a whil longer
signed
Catch me when you can Mishter Lusk
