hunter for details about that night. >> you kept in touch with him. you stayed in contact. >>yes. if he was responsible, i'm going to keep that enemy closer, so i wasn't going to let him out of my sight. >> reporter: jonni wasn't giving up. neither was christina's stepmom anna. >> somebody's seen her. something is somewhere. we just need that little bit of information so we can bring her home. >> reporter: there were no witnesses and few leads but attention grew. plano police were leading larger and larger search parties, scouring the countryside. >> there was a lot of people from the community that didn't know the family, that had no connection to christina, and they were coming to support. and dozens and dozens of people in these searches just trying to find this girl. >> reporter: days went by with no sign of christina or her belongings. more resources arrived like a mounted search team and drones.