In the Moon of Red Ponies

In James Lee Burke's last novel featuring Billy Bob Holland, Bitterroot, the former Texas Ranger left his home state to help a friend threatened by the most dangerous sociopath Billy Bob had ever faced. After vanquishing a truly iniquitous collection of violent individuals, Billy moved his family to west Montana and hung out a shingle for his law practice. But in In the Moon of Red Ponies, he discovers that jail cells have revolving doors and that the government he had sworn to serve may have become his enemy.