Jonathan Kellerman: Killer (Alex Delaware series, Book 29)

Well-used to elevated emotions, psychologist Alex Delaware shrugs off a joking death threat from beautiful Beverly Hills physician Constance Sykes, whose attempt to secure legal custody of her baby niece is thwarted by Alex's forthright report to the court. Alex plays down the threat until LAPD's Milo Sturgis rushes to his side with the shocking word on the street that a hit's been taken out on him. But while Alex may be in grave danger, it won't be from the Beverley Hills doctor, for Connie is soon discovered brutally slain. When her sister Cherie and the baby disappear, apparently on the run, Alex's search for answers leads him to aged rockers, charming homeboys and even Machiavellian judges.