Stewart Evans is a retired police officer who has made it his life's work to track down previously hidden or suppressed documentary evidence relating to Jack the Ripper. He is the co-author of The Lodger - The Arrest and The Escape of Jack the Ripper. He lives in Suffolk.
Keith Skinner is a professional researcher and co-author of The Ripper Legacy, The Peasenhall Murder, The Jack the Ripper A to Z and The Official Encyclopedia of Scotland Yard. He lives in Twickenham.