I was actually sitting in a Sao Paulo airport when the central concept for the book first struck me. What if a seemingly normal guy was shot and the killers died on the scene, preventing any further investigation? What if he was posthumously framed to cover something up? Perhaps someone orchestrated the whole thing, pulling the strings from a distance to serve a completely unrelated purpose. From there, I tried to frame a story that revolved around solving that mystery and incorporated a series of other subplots.