Russell James is an expert at tackling the darker aspects of the human psyche. He explored the dark potential of dreams in his novel Dreamwalker, how quickly we can succumb to hysteria in Q Island, and now he takes on one of my personal macabre obsessions, the evil impulses that drive human predators to kill.

Russell is here today to share examples of these pathological murderers to prepare readers for what they can expect when they venture into the terrifying world of his newest novel, The P...