The Proving Ground, by Michael Connelly
The Book Mickey Haller is back in court. After his ex, Maggie McPherson (Maggie McFierce), wins her election for DA, he's out of criminal court and into federal civil litigation. The client, Brenda Randolph is suing a small AI startup called Tidalwav. Randolph is claiming Tidalwav's companion AI, Clair, told an impressionable teenager to kill her daughter and that's what led Becca's ex-boyfriend to kill her. Before they can go to trial, Brenda is joined in the suit by Becc's ex-boyfriend's parents Trish and Ruce Colton. Aaron Colton is looking at a long stay in either jail or a mental facility for walking on their school grounds and killing Becca in front of multiple witnesses. Joining Mickey Haller on the case are the usual suspects, Lorna and "Cisco" Wojciechowski and an unusual suspect, Jack McEvoy. We are told in story, Harry Bosch can't join the gang because he's having heart problems. Maggie gets burned out of her ho...
