This months selection is The Burning Room by Michael Connelly.
In the LAPD's open-unsolved unit, not many murder victims die t a decade after the crime. When a man succumbs to complications from being shot by a stray bullet nine years earlier, Bosch catches a case in which the body is still fresh, but all other evidence is virtually nonexistent. Even a veteran cop would find this one tough going, but Bosch's new partner, Detective Lucia Soto, has no homicide experience. A young star in the department, Soto has been assigned to Bosch so that he can pass on to her his hard-won expertise.