The Closers by Michael Connelly

After three years of retirement, Harry Bosch has come back to the LAPD.  His former partner, Kiz Rider, has used her pull with the new police chief to recommend him and he and Kiz will be partners once again.  They are assigned to the new Open-Unsolved unit which has been formed to go back and close cases that weren't solved at the time of commission.  Technology advances now make these cases worth another look.  Not everyone is happy that Bosch is back though.  His former nemesis, Chief Irving, makes a point of finding Bosch on his first day back and telling him that Bosch is a retread sure to wash out and Irving will be waiting with glee for that to happen.

Bosch and Kiz get their first case.  Sixteen year old Rebecca Verloren was taken from her home and shot almost two decades ago.  No motive was ever found nor was there ever much of a suspect list developed.  But now things have changed.   The gun matched to the murder has had blood and skin cells found on it and now DNA can help find the person who left those behind.  The match comes back to a man who was basically a juvenile delinquent at the time and who has been a small time crook ever since.  Why would he want to kill a prep school girl and where would he even have crossed paths with her?

Bosch visits the parents only to discover that only the mother still lives in the house.  The marriage broke up and she doesn't know where Rebecca's father is now.  She doesn't recognize the name or photograph of the suspect but that doesn't surprise Bosch as most parents don't know everyone their children do.  She has kept Rebecca's room as a shrine which is also unsurprising.  Parents in these situations are caught in that day when they found out their world had ended.

The suspect was involved with a group of young thugs who were involved in the white nationalist movement although never more than on the fringe.  He seems to still have leanings that way as he is now living with another man in the movement.  Rebecca was biracial.  Was that the motive?  As Kiz and Bosch investigate they start to find reasons that the case was never solved and those reasons point to a whitewash inside the police department.  Can Rebecca's case now be solved?

This is the eleventh book in the Bosch series.  Fans who have recently discovered Bosch through the popular Amazon TV series will be surprised to see that Chief Irving is not the fan and partner of Bosch portrayed there but an enemy of many years standing.  The mystery is intriguing and the interaction between Bosch and Rider is interesting.  This book is recommended for mystery readers.