“I am a practitioner of the science of deduction, of using the known facts in a case to unveil the unknown.’ - Sherlock Holmes, Sherlock Holmes and the Whitechapel Murders” MurderSherlock HolmesJack The RipperWhitechapelMystery And Thriller BooksSherlockian Book:Sherlock Holmes and The Whitechapel Murders: An account of the matter by John Watson M.D. Source: Sherlock Holmes and The Whitechapel Murders: An account of the matter by John Watson M.D.