In my book, Whispers in the Wind -- The Search for Jack the Ripper, I proposed that there were several "Jacks" ripping up the prostitutes but Scotland Yard believed there was only one.  Did I know something that had not been reported before?  Okay, Okay, I'm just having fun with my "psychic" abilities (actually, I did table top magic for awhile and included predictions in my act) -- but every writer likes to believe they wrote something that eventually came true.  It's fun to see this story develop after I'd already published something like it.  Have fun, read the book, tell the Horror Writers Association I deserve a Bram Stoker award.  Ha!