Twice Buried by Steven F. Havill (Bill Gastner Series, Book 3) from Books In Motion.com

Posadas County Undersheriff Bill Gastner knows that ancient Anna Hocking didnt fall down the fruit cellar stairs by accident. He is also certain that old man Reuben Fuentes knows nothing about the bodies scattered on his dusty, southern New Mexico ranch. No Spring Chicken himself, Bill summons his former deputy, Reubens niece Estelle, from Mexico to help clear her uncle of suspicion. Eventually this generation spanning law enforcement team finds a thread tying all the crimes together. The thread leads to a killer with no conscience...