Murder By Proxy — Tony Nash

A psychopathic serial killer is unleashing indiscriminate death among the elderly, using a unique and diabolically dangerous device. The deaths appear to be from natural causes, initially avoiding investigation, although an apparently unconnected shooting causes DCI Tony Dyce to become suspicious. He and his team soon realise that they are fighting a powerful, informed enemy. Shockingly, Dyce learns that the murderer is a disturbed figure from his own past. Electrifying action leads to a terrifying climax, where the Chief Inspector's own life hangs by a mere thread.