Tony Hillerman

The car fire didn't kill Navajo Tribal Policeman Delbert Nez—a bullet did. And the old man in possession of the murder weapon is a whiskey-soaked shaman named Ashie Pinto. Officer Jim Chee is devastated by the slaying of his good friend Del,
and confounded by the prime suspect's refusal to utter a single word of confession or denial.
Lieutenant Joe Leaphorn believes there is much more to this outrage than what appears on the surface,...

PI Joe Leaphorn of Arizona investigates the murder of an Indian policeman for which an eagle poacher has been arrested. Leaphorn thinks someone else did it. By the author of The Fallen Man.