The "Killer" audio book by Jonathan Kellerman is a part of the Alex Delaware series, published by Penguin Random House Audio Publishing Group in 2014. This unabridged fiction audiobook is in compact disc format, intended for an adult audience and narrated by John Robinstein. Set in the 2010s, this thriller/suspense novel is a gripping story that keeps listeners on the edge of their seats, exploring themes of crime and mystery. With its compelling narrative and talented narrator, this audio book is sure to captivate fans of the genre.