The Black Ice by Michael Connelly in Paperback

When a dead body is discovered in a hotel room, reporters swarm the case. It seems to be a missing LAPD narcotics detective who may have gone rogue. Rumors suggest he had been peddling a new drug, Black Ice, from the Mexican cartel. While the LAPD classifies it as a suicide, Harry Bosch has his doubts. Strange clues and unanswered questions at the crime scene leave Bosch questioning the official story. Before long, he is drawn down a twisted path of investigation. a dangerous world of shifting identities, police politics and deadly corruption