Trial of Percy Lefroy Mapleton

At 3.20pm on the hot afternoon of 27th June 1881, the London Bridge to Brighton train pulled into Preston Park, a mile from its final destination. As the ticket collectors approached the carriages, one saw a thin, sickly looking man sitting in a first-class compartment beckoning him over. As the official arrived at the window, he saw that the passenger's face and neck were smeared with blood, and there was a clot beside an ear. There was blood between his fingers, blood upon his clothes, bl...