I'm lookin for a book on real life murderers and madmen. I know of a book called "The Most Evil Men and Women in History." It has chapters on Rasputin, Caligula, Vlad the Impaler, etc. I found this book to be a very interesting read but I'm lookin for books that has murderers such as Albert Fish, John Wayne Gacy, and Ed Gein. But I'm not lookin for fiction. Please, all other suggestions are welcome. I'm interested in any and all books that match this description.