The Jack the Ripper Walking Tour Murder

London, August 1988. Paul Prye, Columbia University professor and true crime nut, and his wife Alice, art historian but a devotee of Agatha Christie, were in town for the centennial of Jack the Ripper's bloody crimes. Paul was meeting a group of fellow crime enthusiasts near the Tower Hill tube station to embark on a walking tour that would retrace the scenes of Jack the Ripper's slaughters, of exactly one hundred years ago. Then one of the group was murdered. Or so Paul Prye believed-though the…