The Good Daughter (The Good Daughter #1) by Karin Slaughter

Twenty-eight years ago, Charlotte and Samantha Quinn's happy smalltown life was torn apart by a terrifying attack on their family home. It left their mother dead and their father devastated. And it left the family fractured beyond repair, consumed by secrets from that terrible night.

Twenty-eight years later, Charlie has followed in her father's footsteps to become a lawyer herself - the archetypal good daughter. But when violence comes to Pikeville again, Charlie is plunged into a nightmare. Not only is she the first witness on the scene, but it's a case which can't help triggering the terrible memories she's spent so long trying to suppress. The shocking truth about the crime which destroyed her family won't stay buried forever ...