Shattered Illusions by Kaye Davis

There's more to murder than meets the eye... When three young women are brutally slain at a dog-grooming shop, independent crime scene specialist Maris Middleton and her lover, F.B.I. agent Lauren O'Conner, join forces to stop the killing. Unfortunately, the investigation looks hopeless from the start. The inexperienced local police failed to protect the crime scene, vital evidence has been contaminated, and early leads amount to nothing. Frustrated and under intense public scrutiny, Maris and Lauren feel their relationship slowly unraveling. And all the while, someone is watching... and waiting.