Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Where's the Science?

Apologies to all you Patricia Cornwell fans, but I find this to be the worst book to have been written on Jack the Ripper - and the book's subject aside, from a structural point of view, it is a badly written book by any standards. Bearing in mind her background and vast forensic experience, I do not know how Ms Cornwell can justify claiming to have solved a hitherto unsolved case when she puts forward absolutely no evidence beyond her own suppostions, which are based on considerable experience admittedly but which remain shakily founded suppositions, none the less. Add to this that Ms Cornwell is, anyway, not the first person to have connected Sickert to the Ripper killings. I am not, at the best of times, a Patricia Cornwell fan but I bought and read this book with an open mind, believing that she might, indeed, have finally solved the Ripper murders. The book was an enormous disappointment and has certainly not persuaded me to reconsider her offerings in crime fiction.