While Rumbelow presents the different obscure rumours that surround Jack's stories he doesn't speculate with them too much. He just shows facts as they are. I was also surprised how much details have been able to find out about the people involved. Would recommend this to everyone who want a comprehensive case-book about the famous murders but not to those who just need to have an introduction. As I said, the book includes lots of details. Warning should also be in order : couple of mortuary photographs of Catherine Eddowes are graphic so sensitive people should skip those I think.