The Killing Plains by Sherry Rankin

From the winner of the CWA’s Debut Dagger Award.

Two victims. Twenty years apart. One elusive killer.
Crescent Bluff, West Texas. Everybody knows everybody. And everybody has a secret.
When a boy is found dead with the skin of a hare’s head in his hand, everyone knows who killed him—Willis Newland, just released from prison after serving twenty years for an identical murder.
But what if everyone’s wrong?
Detective Colly Newland reluctantly agrees to investigate a case that seems to involve the whole town, including her dead husband’s extended family. But the deeper she digs, the more secrets she unearths. And as threats against her escalate, Colly realizes someone is willing to kill to keep theirs…