Dead Matter — M.K. Wren

The celebrated author, Ravin Gould, his equally celebrated actress wife, the media, the locals, and as many tourists as can cram themselves into Conan Flagg's bookstore are all on hand for that electric moment when Cady MacGill, the sheriff's son-in-law, threatens to cut off a vital portion of Gould's anatomy with a chain saw.
Less than twenty-four hours later, Ravin Gould is dead, and Cady MacGill has been charged with his murder.
But bookstore owner and private investigator Conan Flagg doesn't read the situation that way. Not with an election for sheriff coming up. Not when a covey of hotshot New York publishing executives wings into town, lured to the quiet Oregon beach resort by word of the tell-all autobiographical novel that Gould had just finished writing. A novel worth millions, which has vanished without a trace . . .