The Crossing by Michael Connelly
The Crossing, #22 in the Harry Bosch series by Michael Connelly.
Michael Connelly is a long time, NY Times best-selling author, known for his Harry Bosch series. The Crossing is the 22nd installment of the series. Harry is now a retired LAPD detective who joins forces with his half-brother, Mickey Haller, who also appears in a separate series of books by Michael Connelly. You may recognize that name from the role played by Matthew McConaughey in The Lincoln Lawyer, a big screen movie from several years ago.
The Harry Bosch character also recently became a TV series, entitled Bosch, an Amazon Prime series available for free for Amazon Prime members. Titus Welliver plays the character role. (The first season was a success; the second season begins in less than 40 days.)
Harry Bosch is a great character. I always suggest that you start at the beginning of the series so you can appreciate the evolution of the character as Harry fights every day to deliver on his core belief: “Everybody matters or nobody matters.”