Throughout mid-September, the police investigated the scenes of the two crimes and sites where bloodstains had been spotted. Without fingerprinting or blood typing to aid in a forensic investigation, the officers came up with pathetically little On September 27th the police received a wake-up call. The "Dear Boss" letter was the first of its kind, it clearly mocks the police and the author seems to take great pleasure in his crimes. The letter is the first to use "Jack The Ripper", and makes a point of laughing off the only idea the po ....