If mention of Vienna makes you think of Mozart, cream cakes and Gemütlichkeit, John Leake’s new book will make you think again. John Leake is a young Texan writer who found himself living in Vienna. The city captivated his imagination (his favourite film is The Third Man) and he soon began searching around for a Viennese subject for his first book. That was when he stumbled upon the grisly case of Jack Unterweger… John’s debut is a tale of murder and mayhem so bizarre that in a novel it would be dismissed as too far-fetched to be believable. In fact, it is all true. The book tells the story of Jack Unterweger, son of an Austrian prostitute and an anonymous GI. Jack grew up to be a small-time hoodlum, pimp, and thief, and was sentenced to life imprisonment for a brutal murder in 1974. So far, so predictable. But after Jack began to writing children’s stories and had them broadcast on Austrian National Radio, the country’s intelligentsia sat up and took notice: here was living …