I am researching Jack the Ripper for a future Sam Smith story and for a novel set in 1888. Personally, I don’t think any of the ‘usual suspects’, George Chapman, Francis Tumblety, Aaron Kosminski, etc was Jack the Ripper and I doubt that his true identity will be found. Nevertheless, the man holds a gruesome fascination and, of course, the subject matter is ripe for a detective novelist.
From the Illustrated London News, 1888, Aaron Kosminski – was this man Jack the Ripper?