No-one in the annals of crime is capable of arousing such passionate debate as the perpetrator of the Whitechapel Murders in 1888. Was he a demented royal, a Masonic assassin, a misogynist don, a member of the czarist secret police or even an escaped gorilla? Over 100 years have passed since the unknown Ripper murdered East End prostitutes without detection, despite an enlarged and watchful police presence. Includes an introductory essay, a summary of the Ripper's crimes, victims and the ill-fated investigation and thorough consideration of proposed identities.