Dead Man Switch
This techno-thriller is the second in the John Hayes series, following Cold Barrel Zero. Hayes is retired from an elite Special Ops team, but is pulled back in when it becomes clear members of his former squad are being systematically killed. The murders are being disguised as accidents and the prime suspects include Claire Rhodes, who is an old assassin protege of Hayes, and Pakistani terrorist Niko Hynd. If the riveting non-stop action isn't enough to entertain, the fascinating investigative and criminal methods contained within will.