With a lifelong interest in society, anthropology and puzzles I've read pretty much everything there is on historical murders and one gets so used to the author pushing their pet theory, glossing over inconvenient details and not following up obvious leads, or simply cutting and pasting from other people's work with nothing new to add. Trying to pick the truth out of the book is usually as much a matter of detective as if if one were trawling through the archives for oneself, and I've done that too.
So what a fantastic relief and, if one may use the word in this context, joy, to pick up Ms Janes' meticulously researched, and eloquently presented treatise. She does not take sides, speaking for and against all parties as the evidence flows, examines the failings of the investigations in a realistic but non-judgmental way, asks all the right questions of all the right people, and produces her conclusions with clarity and humility.
Were it up to me this would be a set book on any journalism or investigative course, and I look forward to more work of this standard in the future.