nick hoblert was holed up in a hotel.way, david marshburn was wide awake, wondering, worrying, hoping that tomorrow would be the day that he could finally break kelli bordeaux home. >> i couldn't sleep that night. marcia couldn't sleep. we were just all excited for the next day. so the next day comes, we go to pick him up and he's real quiet. >> he, of course, was nick hoblert, who was now back in the forest outside fayetteville. it was may 14th, 2014. two years of searching had now come down to this one sweltering spring morning. but hoblert still couldn't remember exactly where he had buried kelli's body and went off searching in a different direction. >> we're standing there, i'm like, darn it, i cannot figure this out. and all of a sudden, i looked over to my left and there's some clearing over here and there's the sun coming down. >> reporter: then in that very same spot, cass seemed to pick up a sent. >> all of a sudden he starts crawling to it, like, wimpering, crawling. and he stops. that was our spot. >> reporter