Best-selling author Jeffery Deaver keeps the surprises coming up to the very last page of his newest Lincoln Rhyme thriller, The Kill Room. Rhyme's been assigned to track down a murderer. Well, two murderers, actually. There's the highly skilled sniper who shot a man from over a mile away. And there's the man who ordered him to do it. Rhyme and company get involved because the dead man was an American citizen and the man who ordered his death was a U.S. government official gone rogue. Rhyme has to travel to the Caribbean for this case, something the quadriplegic forensic investigator finds both daunting and dangerous. His partner Amelia is having some troubles of her own; she's clashing with the assistant district attorney who's handling the case. The woman's ''win at all costs'' attitude doesn't sit well with Amelia, who isn't so sure this is a criminal case. American citizens being killed by the U. S. government seems like a political and ethical quagmire, not a criminal offense.