Ms Cornwall should have saved her $4 million bucks and bought a copy of Donald Rumbelow's book, The Complete Jack the Ripper. He was a serving police officer and it shows in his highly detailed analysis. From my own background as a history graduate I believe his method to be sound. My copy is an older one, and I dare say it has been revised since I bought it. The only thing against this book is that there is no mention of my favourite suspect, but then the evidence did not come to light until after it was published.
Nah, he didnt use a Khuk, but there may be similar looking surgical knives from that period-be very grateful for modern medicine! You have to remember that it was clear this man had some knowledge of anatomy and did his butchering with a degree of skill beyond a laymans ability to do so. If he had used a Khuk I dont think this conclusion would have been reached. I do believe there is a 19th century post mortem knife lurking around that is supposed to have been his. I cant remember the details-its been a while-1988 ( 100 year anniversary ) since I took much interest.
It will be interesting to see Ms Cornwall's conclusions, but the fact remains we will never know for sure who the ripper was. At best it will be an educated guess. There are people who have been working on this for years and years and they cant agree amongst themselves. I see she says she is staking her reputation on her findings. Easy to do when no one this side of the supernatural can say one way or the other who the murderer was.
The most likely contender that I have seen mentioned was featured on a tv program screened in the UK a few years back. His name is Francis Tumblety and there is, in my opinion, far more evidence to suggest he is the ripper than any of the other suspects.
Here's the best source I know of for anyone interested:
http://www.casebook.org/
It seems that Tumblety is the foremost suspect of the readers of this website. Go and have a look for yourself.
It seems also that the people on that message board are less than impressed with Ms Cornwall's claims.