J. D. Robb 
Indulgence In Death [EPUB ebook] 

It’s playing more and more like it was for the thrill. Just for the rush. And if that’s the way it is, he’s already looking for the next thrill.’First it was a limo driver shot through the neck with a crossbow. Then it was a high-priced escort found stabbed through the heart with a bayonet. Random hits, thrill kills, and murderers with a taste for the finer things in life — and death — are making NYPSD Lieutenant Eve Dallas angry. And an angry Eve can be just as an efficient and dangerous predator as the killer. As time runs out on another innocent victim’s life, Eve’s investigation will take her into the rarefied circle that her lover Roarke travels in — and into the perverted heart of madness . . .