Skeleton Canyon (Joanna Brady Mysteries, Book 5)

(From the back cover0
Brianna "Bree" O'Brien never returned from skeleton Canyon. someone brutally murdered the pretty, popular teenager who had stolen away under cover of darkness to rendezvous with her boyfriend, Ignacio Ybarra. Perhaps youthful rage, jealousy and savage passion cost young Bree her life. Or maybe she stumbled onto something too dangerous to know.