In 2002, crime novelist Patricia Cornwell, in Portrait of a Killer: Jack the Ripper—Case Closed, maintained that Sickert was Jack the Ripper. A psychological motivation for Sickert was said to be a congenital anomaly of his penis. Cornwell purchased 31 of Sickert’s paintings, and some persons in the arts world have said that she destroyed one of them in a search for Sickert’s DNA, but Cornwell denies having done this. Cornwell claimed she was able to scientifically prove that the DNA on a letter attributed to the Ripper and on a letter written by Sickert belong to only one percent of the population.
Its certainly intriguing. Although not fair to Mr. Sickert.