David Guggenheim wrote the 2012 Denzel Washington hit Safe House for Universal, and the Nicolas Cage thriller Stolen for Millennium. He also penned the sci-fi adventure film 364; the action film Narco Sub, which was to have been the late Tony Scott's next feature film; and Puzzle Palace, a contained thriller, for Summit Entertainment. His most recent spec script, Black Box, sold to Universal with Madhouse and Bluegrass Films producing. Weaponized is his first novel. He lives in New York with his wife and two children.