Spider Woman's Daughter by Anne Hillerman (2013)

First Edition.  Legendary tribal sleuths Leaphorn and Chee are back! The supremely talented daughter of New York Times bestselling mystery author Tony Hillerman continues the popular series with this fresh new Navajo Country mystery-her debut novel-filled with captivating lore, startling suspense, bold new characters, vivid color, and rich atmosphereIt happened in an instant: After a breakfast with colleagues, Navajo Nation Police Officer Bernadette Manualito saw a truck squeal into the parking lot and heard a crack of gunfire. When the dust cleared, someone very close to her was lying on the asphalt in a pool of blood.With the victim in the hospital fighting for his life, every officer in the squad and the local FBI office are hellbent to catch the gunman. Bernie, too, wants in on the investigation, despite regulations strictly forbidding eyewitness involvement. Her superior may have ordered her to take some leave, but that doesn't mean she's going to sit idly by, especially when her