The Night Fire by Michael Connelly

When retired LAPD detective Harry Bosch is given a murder book by the wife of his recently-deceased mentor John Jack Thompson, Bosch wonders what was special enough about the case for John Jack to keep it all these years. After reading through the official book of the case and investigation, he asks LAPD Renee Ballard to also look through it. The murder of John Hilton happened in 1990 in an alley that was controlled by a local gang. Two detectives did work on the case then, but hit a dead end and the case remains unsolved. Will Bosch and Ballard be able to uncover who murdered Hilton? Michael Connelly is again in top form with The Night Fire. An unputdownable thrill ride by my favorite author.