Dead Famous (Kathleen Mallory, #7) by Carol O'Connell

Dead Famous by Carol O'Connell is 7th in the Kathleen Mallory police procedural mystery series set in late-20th-century New York City. This plot is quite intricate; difficult to understand "why"...A man was tried for murdering his wife, and acquitted; is now a verbally abusive "shock jock" with a radio show. On the air, he encourages listeners to locate jurors from the trial. Those jurors are trying to lead their lives in peace, with new identities and in new locations due to the witness protection program. After jurors' locations are revealed on the radio show, they are murdered. Riker and Mallory are hunting the serial killer. Riker forms a close attachment to one of the jurors, which puts him at odds with his partner. Plenty of surprises keep the reader guessing all the way. An emotional scene will hit pet lovers hard. A scene in Grand Central Terminal showcases O'Connell's awesome writing (Mallory's clever trickery).