A detailed and meticulously researched encyclopedia on all aspects of Jack the Ripper, one of the world's most famous, and mysterious, serial killers.

The encyclopedia includes a list of more than 100 witnesses and what each one saw, descriptions of the locations where the murders took place and the police officers involved in the investigations, contemporary newspaper accounts, and psychological profiles and physical descriptions of The Ripper. In the final chapter, John J. Eddleston, author of numerous books and articles on crime, reveals his own deductions about "whodunnit," narrowing the list of suspects to one man.