Secret Sins by Lora Leigh

Sheriff Archer Tobias has watched the Callahan family struggle to find peace and acceptance in the community—despite the murders that continue to haunt them. But his darkest suspicions grow worse when Anna Corbin, a member of one of the country's most influential families, becomes the next target…

Anna knows she’s in danger. She knows she’s on a trail of secrets and lies that could lead to a dead end. But no matter what, she’s determined to learn the identity of the killer—even if it’s someone she loves…

Torn between duty and desire, Sheriff Tobias cannot allow Anna to put herself in the path of a deranged murderer. But as the investigation pulls them closer together—and deeper into the nightmare—he realizes that he cannot save her from this legacy of blood and vengeance…without putting his own life on the line.