Dust to Dust book by Tami Hoag

Sorry. The single word was written on a mirror. In front of it hung the Minneapolis Internal Affairs cop. Was it suicide? Or a kinky act turned tragic? Either way, it wasn’t murder. At least not according to the powers that be. But veteran homicide detective Sam Kovac and his wisecracking, ambitious partner Nikki Liska think differently. Together they begin to dig at the too-neat edges of the young cop’s death, uncovering one motive and one suspect after another. The shadows of suspicion fall not only on the city’s elite, but into the very heart of the police department. Someone wants the case closed–quickly and forever. But neither Kovac nor Liska will give up. Now both their careers and their lives are on the line. From a murder case two months old to another case closed for twenty years, Kovac and Liska must unearth a connection the killer wants dead and buried. A killer who will stop at absolutely nothing to keep a dark and shattering secret . . . Published By Bantam on 2003-12-30