On the same subject as James Ellroy's gripping pulp novel, Black Dahlia (a fictional reworking of the 1947 murder of Elizabeth Short, in Los Angeles), but non-fiction. Piu Eatwell's book is a true crime account, based on unredacted FBI and police files and new interviews, but it's no less of a page-turner.

"In the following pages I tell the story of this extraordinary case. However, despite its narrative form, this is not a work of fiction. Anything written between quotation marks comes from a letter, memoir, or other written document. If I describe the weather on a particular day, it is because I checked the contemporary weather reports. " (from the preface)

I won't give spoilers, but Eatwell makes a very convincing case for the suspect she fancies as the killer.

It's a plot so thick you could stand a spoon up in it. But events are gone over several times, from different angles, which makes it easier to understand.

Psychopathic bellhops, dodgy nightclub owners, pornographers,cynical chain - smoking journalists, cops who run protection rackets (extorting the gangsters), girls arriving on the bus hoping to make it in the movies (Ann Toth, a friend of the victim,later had a bit part in the film Smash-Up - you can still see this today, on DVD) --they're all in this book.
There's even one suspect who was a physician,who was suspected of murdering his secretary, as well as the Black Dahlia. He ran an illegal abortion clinic, was into surrealist art, and was even suspected by the police of having Communist sympathies. (He escaped to the Philippines.)
One of the gangster suspects gets shot in the back with a twenty-five-caliber automatic pistol, by his dancer girlfriend, accusing him of being a "goddam cop lover". She wound up in a lunatic asylum.

The books a great read, and a real window on a previous era. Even the chapter titles are in an atmospheric art deco typeface.
Highly recommended!