Serpentine by Jonathan Kellerman

NO WITNESSES. NO EVIDENCE. NO MOTIVE . . . When Ellie Barker was three years old her mother was found in a torched Cadillac overturned on Mulholland Drive with a bullet in her head. Many detectives had tried and failed to solve the case. Decades later still desperate for answers Ellie hires LAPD homicide lieutenant Milo Sturgis who calls in the expertise of brilliant psychologist Alex Delaware to investigate. But as the two begin digging they soon discover a string of dangerous threats still lur Paperback softback