<p>I killed and buried my best friend today ...</p><p>When authorities found Raffi Kodikian -- barely alive -- four days after he and his friend David Coughlin became lost in Rattlesnake Canyon, they made a grim and shocking discovery. Kodikian freely admitted that he had stabbed Coughlin twice in the heart. Had there been a darker motive than mercy? And how could anyone, under any circumstances, kill his best friend?</p><p>Armed with the journal Kodikian and Coughlin carried into Rattle- snake Canyon, Jason Kersten re-creates in riveting detail those fateful days that led to the killing in an infamously unforgiving wilderness.</p>