By far my favourite fictional book about the murders by far. It's worth it for the footnotes alone. The sheer depth in it is staggering. Surfing the net bit and you'll find quite it's a favourite of university thesis's. Sadly all the subtlety and h study of human psychology was stripped from the movie.
"Whenever an expert says something that bolsters the Lechmere theory, it is not my task to disprove him ..."