The Black Box by Michael Connelly

Twenty years ago Danish journalist Anneke Jespersen was gunned down in an alley during the riots in Los Angeles.  Harry Bosch, as part of the LAPD's Open-Unsolved Unit, is in charge of the case and asked for it specifically because he was one of the policeman called to the murder scene--but he couldn't spend time on the case because the city was in chaos.  Bosch wonders what Anneke was doing in Los Angeles--was she on vacation or working, or a bit of both?  As Bosch delves into the case, his boss makes it clear that he feels its going nowhere and Bosch should spend his time elsewhere, but then it goes in an unexpected, forward direction and Bosch finds himself following it to the end, despite the cost.  The Black Box is the latest novel in the Harry Bosch series and is hard to put down.  As usual, Connelly creates a story that's engaging and, in Bosch, a main character that you always want to come out on top.