My family loves a good mystery. My husband isn't a reader, though, so the mysteries we share tend to be on tv. Right now we are watching s History Channel series about H.H. Holmes, a serial killer from Chicago in the 1890s.
Holmes is actually an alias, one of many, as this man was a con artist and committed fraud many times for money as well.
The series is based on the theory that H.H. Holmes could have also been Jack the Ripper. This theory has been put forward by his great-great-grandson. The grandson and a former CIA investigator are looking for clues to either prove or disprove this theory. It is a compelling argument and I think it has a strong basis in fact. We are only two episodes into the eight part series, so I can't tell you anything definitively.
What I can tell you is I have read books of differing theories on who the Ripper was.
Cornwell is the author of a bestselling mystery series. She believes in research and backs up her theories. She postulates that Jack the Ripper was a troubled impressionist artist who was known for painting odd subject matter. Walter Sickert followed the Impressionist art style and so would have painted things he actually saw.
This painting is called The Camden Town Murder, and the Ripper's last known victim was killed in her bed.
A second book I have read is
The theory here is that the man who was Jack the Ripper stopped killing because he was institutionalized after slitting his own wife's throat.
If I was going to pick one suspect based on these two books, I'd go with Sickert, but now I think H.H. Holmes could be him.
One of the things about this mystery is that I don't think we will ever conclusively prove who he was. Crime scene investigation was in its infancy at that time and the scenes were often contaminated by unwary gawkers and police officers. DNA could yield clues but I don't know that much of the evidence remains. There is a shawl from Mary Eddows being tested for the show but I doubt the blood is anyone but hers.
I wish I had more time to read other theories for comparison, but I just don't right now. I'll have to rely on the History Channel series to sate my curiosity for now.