Ryan David Jahn grew up in Arizona, Texas, and California. He finished school at sixteen, worked several odd jobs, and spent time in the army before moving to Los Angeles, where he worked in television and film for several years. He published his first novel, the CWA John Creasey Dagger winning Acts of Violence, in 2009, and has since published three others: Low Life; The Dispatcher, which was long-listed for the CWA Ian Fleming Steel Dagger; and The Last Tomorrow. Translation rights to his works have been sold in twelve languages. He now lives in Louisville, Kentucky, with his wife Jessica and two daughters, Matilda and Francine.