The murder that defeated Whitechapel's Sherlock Holmes - Paul Stickler

In 1919, when a shopkeeper and her dog were found dead in Hitchin, Hertfordshire with brutal head injuries, there followed an extraordinary catalogue of events and a local police investigation which concluded that both had died as a result of a tragic accident. A second investigation by Scotland Yard led to the arrest of an Irish war veteran, but the outcome was far from conclusive.
Written from the perspective of the main characters involved and drawing on original and newly-discovered material, this book exposes the frailties of county policing just after the First World War and how it led to fundamental changes in methods of murder investigations.
Offering a unique balance of story-telling and analysis, the book raises a number of unanswered questions. These are dealt with in the final chapter by the author's commentary drawing upon his expertise.