Why??

So why then is Jack the Ripper such a topic of discussion? Why do people continue to create theories on who he was and why he did it, especially those that are slightly weirder and those of the supernatural?
http://www.trutv.com/library/crime/serial_killers/notorious/ripper/index_1.html

Jack the Ripper is the classic 'whodunit'

"Not only is the case an enduring unsolved mystery that professional and amateur sleuths have tried to solve for over a hundred years, but the story has a terrifying, almost supernatural quality to it"

I think because the murders were never solved, it just gives ground for untold explanations to be created, even if they seem ridiculous, most people take more interest in the extreme as opposed to the 'boring' answer, that Jack the Ripper was an ordinary man who killed 5 prostitutues 'just because'.

Lyns