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5 internautes sur 5 ont trouvé ce commentaire utile :
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Patricia Cornwell's six million dollar man..., Nov. 11 2002
Ms. Cornwell spent six million dollars of her own money researching Jack the Ripper, and the result is this book. Did she really close the case? Unfortunately, no.Walter Sickert was in France while at least four of the five canonical murders took place. There are nearly a half-dozen independent sources, that we know of, that attest to this fact. Only one of those sources, a letter, is mentioned by Cornwell, and then summarily dismissed because there was no post-mark to prove when it was sent. Ms. Cornwell claims to have found a match between Sickert's DNA and the Ripper. This is not true. She found a sequence of mitochondrial DNA (mtDNA) on both letters signed "Jack the Ripper" and letters written by Walter Sickert. This is an important distinction. mtDNA, unlike nuclear DNA (which was not found on any of the correspondence), is not unique. A particular mtDNA sequence can be shared by anywhere between 1% and 10% of the population. Ignore the countless problems of DNA contamination and provenance that comes with examining documents over a century old, and you still have the problem that these "Ripper letters" are known to be hoaxes (nearly 600 of them were sent to the press and police from all corners of the globe in 1888 and beyond). On top of that, Sickert's DNA no longer exists - he was cremated after his death. There is no way to tell whether the mtDNA found on Sickert's letters was his, his wife's, a friend's, or that of any of a thousand researchers and students who have handled them in the past sixty years. Although Patricia claims that the evidence she has amassed would be enough for a jury in 1888 to say "Hang him!", I have to disagree. At best, she has found partial evidence to suggest that perhaps Walter Sickert hoaxed one or more Ripper letters. But even if that were proven beyond the shadow of a doubt, there is nothing to suggest that these "Ripper letters" were actually from the murderer. Most students of the case believe them all, with the possible exception of the "From Hell" letter, to be hoaxes. I would suggest that readers interested in the case pick up Phil Sugden's "Complete History of Jack the Ripper", which was just recently reprinted in paperback. Alternatively, you can check out the web site "Casebook: Jack the Ripper," which contains a great deal of information on Cornwell's book, Walter Sickert, and all manner of Ripper-related topics.
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de Patricia Cornwell
de Lisa Gardner
