Originally posted by Michael W Richards
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Moreover, we could argue that whilst crime signatures do evolve there's never been a case of a serial killer alternating between dismemberment and JtR style street murders. You could also argue that there's never been a case of a perpetrator cutting two irregular strips ftom an abdominal wall so, if we were simply to invoke precedent, Elizabeth Jackson becomes a stand alone victim.
In virtually all other respects the two "series" of cases are very different. For instance, I believe the Torso cases suggest defensive offensive dismemberer, where at least elememtary steps were taken to prevent the victims being identified. JtR, of course, wasn't interested in this issue.
Then there's a matter of transport. I think Fisherman agrees that a Torso perpetrator would require transport, whereas the evidence strongly suggests to me that JtR didn't have transport, i.e. remained committed to the same incredibly small geographical area, despite the fact that an increased police presence in Whitechapel, and a local population on high alert, should have encouraged him to venture out further afield, such as a neighbouring district (this might also suggest that JtR was psychologically committed to the Whitechapel area.)
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