lynsie ekelund had been killed before anyone realized she was even missing. p to the work site and used a skip loader to dig a hole. he held on to lynsie's body for a few days and then when no one was around, he buried her. did it feel any better to finally know? >> no, because i was really devastated. there was a relief, but i wasn't any happier because of it. >> reporter: with detectives, chris returned to the site that had become lynsie's final resting place. >> right where this tree is i >> reporter: with detectives, chris returned to the site that had become lynsie's final resting place. >> right where this tree is i pulled my truck over and parked it. >> this tree to our left here? >> uh-huh. right where this tree is. didn't used to exist there when we had construction. >> okay. >> reporter: he wasn't sure of the exact spot. >> it is over in this vicinity. >> it could be way out there or way over here? >> from the tree all the way to that brush. >> that brush over there? >> yeah. >> reporter: it took more than a day of digging to find what was left of ly

. >> lynsie ekelund arrived on july 22nd, 1980. she was the youngest of three. maybe that fighting spirit isn't visible in her photos, but her mother nancy said it was always there. lynsie had a passion for animals. she helped out in her spare times at the local shelter. kim davidson who worked at lynsie's middle school remembers that she had a sense of compassion. >> i was freezing cold and i didn't bring a jacket that day. i felt these little hands up on my shoulder and a sweater come up around me and i turned around and it was lynsie, and she said i just can't stand watching you shiver. >> lynsie gave back in other ways. she would lie about her age to give blood. her left lung was paralyzed. left leg impaired. >> did she ever talk about how she became disabled? >> she had brought it up to me. she said she was in a car accident and thrown when she was a little girl but very, very just like matter of fact. not poor me or not feeling sorry or anything like that. >> but growing up lynsie needed so much care, her mother was with lynsie like a shadow. >> somebody ha