With respect to masturbating at or near the scene, or spontaneously ejaculating while mutiliating, I think this is possible. Lacking any real forensics, trace amounts of semen easily could have been overlooked. To make the point, how could we possibly know if the Eddowes apron - smeared with blood and fecal matter - did not contain semen? There is no way of knowing for sure.
How long is semen detectable? Could its presence be detected on the letters?
"How long is semen detectable? Could its presence be detected on the letters?"
Well, I suppose you mean "The Dear Boss" or "The Lusk Letter"? The stain should remain. There is a story that the statue, "Aphrodite of Knidos," was "attacked" by one of the men of the city. He then left "a shameful stain" on it.
To make the point, how could we possibly know if the Eddowes apron - smeared with blood and fecal matter - did not contain semen? There is no way of knowing for sure.
In some cases we have doctors declaring "no evidence of connection". The existence of semen is the only evidence with which to make that judgement. The police would no doubt be familiar with semen stains on the clothing of a prostitute, but they would have no way of telling from which customer.
Can you think of a reason for the apron to carry semen stains? From what we read, the common method of "connection" was from the rear, not the front. The apron was open at the rear.
A couple of the victims (Chapman, Stride) had bruises on or just below their clavical (collar bone). Consistent with a male customer standing behind and gripping them tight with their hands, for leverage?
Finger tip pressure might cause such marks, but not necessarily due to the killer.
I was assuming Jack would have been close to climax as in all likeliness he got a big sexual thrill from performing the mutilations so masturbating would be just to finish himself off so to speak. Apologies for how bad taste that all sounds.
Jack and the Torso Killer are in my opinion two very different killers. Jack being a killer who used a blitz attack to murder his victims followed by mutilating them post death and is in all likeliness from the same class as his victims e.g. from the lower classes whereas the Torso Killer is a killer who murdered his victims as they slept, then dismembered them for the purpose of easy disposal. Also ironically the Torso Killer was probably a man of means and was probably quite close to the stereotypical media portrayal of Jack as a top hated toff.
Last edited by John Wheat : 04-15-2012 at 07:56 PM.
Reason: Spelling Mistake