The Deal Master by Gerard Bianco
Approx. 90,140 words.
Published on April 7, 2012.
A serial killer is murdering women with red hair. Detective Gillette and his team are on the hunt, but their investigation turns up empty. A stranger holds vital information but will cooperate only by making deals. Gillette accepts, but each deal comes with a price, plunging the detective into a game for which he is unprepared. The only way out is by striking the ultimate deal.