From back of book: The subject of a failed government programto produce a more deadly military fighter, Carl Marsalis is a hit man who has lost his desire to kill. When he is arrested in Miami, it seems he may finally have left his troubled past behind--even if his future awaits him in the form of a cold jail cell. Unfortunately, certain government officials have a different plan for Marsalis, one that will turn his talents towards their own nefarious ends.

(Source: Del Rey)