I have watched a couple of these shows. They go and film live to where people are searching for missing loved ones. They usually include the name of the victim in the title of the show. I'm looking on the Investigation Discovery web site for the two specials I have seen, but no luck.
One girl was missing from one of the Hawaiian islands. Actually she and her boyfriend went missing near where the volcanos rupture because they were going to start a tour guide business in the area. Ended up her and her boyfriend got into a fight and he killed her. Her body was discovered very soon after he dumped her into the sea. He ended up killing himself when they finally found him and I think he had written a note explaining that he had killed her. Dang! I wish I could remember the names. That would help me.
The other girl, Washington or somewhere up north went missing. She had been in Drug Rehab and was coming home. She just disappeared from a bus stop. They found her backpack and immediately suspected foul play. However, in the end, people kept saying they were seeing her. At the end of that show it left you feeling that the girl was alive and just didn't want to be found at that point. Her mother also at one point was very frightened that her daughter was being held against her will. Anyway, I am anxious to see Christina's story and hopefully she will be home by the time it airs and they can give an uplifting update.