upscale shopping mall in the town of plano. it was hopping. the group headed to a bar called henry s tavern, then closed down another called scruffy duffy s. at about 2 am, christina, steven, and a few others went back to the apartment where they d started. reporter: how drunk was everybody? i mean, we were all pretty drunk. it was myself, i probably had ten to 12 shots and a couple beers when i was out. reporter: too drunk to drive, steven wanted to crash on the couch and sober up. but christina hadn t had much to drink at all and she just wanted to get home. it was now about 3:30 saturday morning. she wanted me to take her home. reporter: she wanted you to take her home and you say, i can t. i ve had too much to drink. why don t you stick around? yeah. reporter: and she says, no, i want to go. i m going to go. yeah, she s stubborn. i m not going to force her to stay there. reporter: steven says christina decided to drive
missing person case is obviously a plano case and so we are certainly here to help them in any way we possibly can. reporter: still, reporters wondered if police were telling the whole story. we didn t know if he was being maybe arrested for that federal drug charge and there was something there that might be connected to christina. just to get him into custody. just to get him into custody? we had no clue. reporter: by early december coming up, investigators are starting to think they knew what happened to christina morris. but can they prove it? she was fighting for her life. when dateline continues. protect your pet with the #1 name in flea and tick protection. frontline plus. trusted by vets for nearly 20 years. i m and i m an emt.erer when i get a migraine at work, it s debilitating. if i call out with a migraine, that s one less ambulance to serve a community. i just don t want to let these people down. excedrin migraine. relief that works
sandwich board saying, be suspicious of me. so it s friday night, but they re not going out together. and he doesn t call when she s missing. and he won t let you download his phone. is that about right? that s all true. reporter: christina s mom also found hunter s behavior very odd. and she confronted him about it. i need to know why you didn t call, why you didn t check on her? yeah. i flipped out. i got little anxiety right now. reporter: jonni kept pressing 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
that it was four days she d been missing already. and so that kind of raises a red flag that something serious might be going on. there is still no sign of a missing ft. worth woman who vanished from a plano parking garage. reporter: by this time a lot of people in north texas were hearing about christina morris. lorraine caceras covered the story for telemundo dallas. people don t randomly disappear from shopping centers in plano. that just doesn t happen. and the fact that maybe, just maybe this could be a random act. and if it is a random act reporter: then it s really scary. it s very scary. am i the next victim? and the unanswered question, where is she? coming up, questions for the friend who left the party with christina. you don t mind if i look in your car? no, it s no problem. police were very adamant that this guy was not a suspect. if he weren t a suspect, then who was? when dateline continues. ahh. summer is coming.
reporter: the calls led nowhere, and jonni felt helpless in oklahoma, so she and her husband packed their bags and drove the four hours down to plano. straight to the parking garage where christina s car had been found. you came straight here. yes. even though this was the one place in dallas where you can pretty much guarantee police had searched pretty thoroughly. yes. but you re searching. you re walking all over the place. yes. as a mom, i just couldn t believe that there s no way that there s no evidence that she didn t come out of this parking garage, that she had to still be here. reporter: jonni didn t find anything but she hoped maybe someone in the neighboring apartments heard or saw something. how many doors you knock on total do you think? oh gosh. 50, 100. reporter: christina s friends were searching the shopping center too. we walked to restaurants. we talked to people. we walked the path that she possibly could ve walked that night.