Peter Ackroyd said this quote
“ None of these apparent sightings interested Hawksmoor, since it was quite usual for members of the public to come forward with such accounts and to describe unreal figures who took on the adventitious shape already suggested by newspaper accounts. There were even occasions when a number of people would report sightings of the same person, as if a group of hallucinations might create their own object which then seemed to hover for a while in the streets of London. And Hawksmoor knew that if he held a reconstruction of the crime by the church, yet more people would come forward with their own versions of time and event; the actual killing then became blurred and even inconsequential, a flat field against which others painted their own fantasies of murderer and victim. ”