Tony Cavanaugh is one of Australia's most successful television screenwriters and the author of the highly acclaimed Darian Richards thrillers. His latest novel Blood River features the hunt, catch and conviction of an alleged serial killer, questioning what happens when they're due for release after serving a 'life sentence'. Heavily informed by real-life crime events and trials, including the injustice of Lindy Chamberlain, Tony is extremely candid about what drove him to tell this story. Warning: there is some seriously colourful swearing in the second half of our conversation as Tony's passion for truth in storytelling bursts through. You can follow Tony on twitter @tonycavanaugh1