Don't reach for that Collected Sherlock Holmes on your bookshelf--Arthur Conan Doyle didn't pen the above. Nor did Wilkie Collins. Nor did any other novelist of the Golden Age of Detective Fiction.
The above quotation is in fact not from a work of fiction at all. Malice Domestic, or The Balham Mystery, is a report about a real-life crime, one of many penned by an extraordinary individual with whom few book collectors nowadays are likely to be acquainted--even though that individual virtually invented the genre of true crime as we know it today.
As David Wade observes in a recent article, it is because Roughead took the cases [he reported] so seriously and deepened the nature of the crime writer's enquiry into motivation and circumstance, he became that rare instance in the genre, the true stylist. This is what attracted Henry James to [Roughead's] writing and it is what has confirmed and maintained his reputation.
If Roughead had not existed, we probably would have had to invent him. Certainly, it's difficult to imagine The Stranger Beside Me, Helter Skelter, In Cold Blood and similar true crime titles absent a major progenitor like Roughead. It is a measure of his importance that NYRB Classics has recently reprinted a number of his works as a single volume (depicted below). ...

