but, one of them never left her side. her mom, pat i >> my poor baby. how could this happen to her? >> exactly would did happen here is a question that would consume, not just christians family, but investigators and prosecutors, as well. together, the road rash on her body, a long trail of blood on the asphalt suggested kristen may have been hit by a car. or fallen from a car. or, been thrown from a car. but, when kristen was found, there wasn't vehicle in sight. if anybody else was involved, they were gone. >> real simply put, we knew somebody knew would happened. >> i just remember clinching my face every time i went in there, just seeing her like that, knowing that somebody did that tour, and is not coming forward, hiding. >> the grizzlies were going to do all they could, to make sure that whoever hurt kristen, was