From the description:
"Someone has been watching D.A. Rachel Knight--someone who's Rachel's equal in brains, but with more malicious intentions. It began when a near-impossible case fell into Rachel's lap, the suspectless homicide of a homeless man. In the face of courthouse backbiting and a gauzy web of clues, Rachel is determined to deliver justice. She's got back-up: tough-as-nails Detective Bailey Keller. As Rachel and Bailey stir things up, they're shocked to uncover a connection with the vicious murder of an LAPD cop a year earlier. Something tells Rachel someone knows the truth, someone who'd kill to keep it secret."
Readers give this 4.4 stars on 39 reviews, but a total of a more than 10% negative (4). 449 pages, with WhisperSync for voice, if you are of the Kindle and Audible tribes