I think that is what is so fascinating about the Jack the Ripper case, in many cases, you cannot find a suspect, but around Spitalfields in early Victorian Times, it could be implied that there was actually a 'glut' of suspects, the whole area was a huge melting pot of crazy and poor circling around the puritanical views that helped define that era, which is why, in the history of the case, there have been named over 500 possible suspects.
JMS' account makes interesting reading though, it does sound, at the very least, like Rev. Barnett was an admirer of the man and may have copied him, or he may yet prove to be the Ripper himself, the DNA evidence is compelling, but not absolute proof of guilt.
I did smirk at the fact that one of the Policemen took the shawl home for his wife though, "I love you so much, I've pinched you the shawl of a murdered prostitute'. Ah, love isn't what it used to be....