Most famously, Rinek got Cary Stayner to confess to all four of the killings known as the Yosemite Park Murders, an accomplishment made more extraordinary by the fact that the FBI nearly pinned the crimes on the wrong suspects. Rinek's recounting of the confession and what he learned about Stayner provides perhaps the most revelatory look ever inside the psyche of a serial killer and a privileged glimpse into the art of interrogation.