" Prior to my investigation into this case, Portrait of a Killer: Jack the Ripper—Case Closed, it doesn’t appear that any significance was attributed to the fact that some of the mocking, taunting communications the Ripper sent to the police and the press were signed Nemo. He also signed a postal telegram Mr. Nobody, then crossed it out and wrote Jack the Ripper instead "

― Patricia Cornwell , Chasing the Ripper