erika norman (on radio): this is erika norman on the wrok, w-r-o-k. she enjoyed it.io. and her professor thought she was doing a really good job. andrea canning (voiceover): but her true love, said best friend iliana goren, was helping others. we were going to go to honduras. and she was going to go to college and major in spanish so that she could perfect her-- her language. and i would go to into the medical field. and we would both just make a team and work helping other people. andrea canning (voiceover): now alarm bells were going off as iliana talked to erika's parents. could you feel the concern? they were very concerned. andrea canning (voiceover): iliana was, too. she knew that erika was a kind and trusting person, sometimes too trusting, and had warned her several times how that could lead to trouble. she just thought everybody was good people. everybody was good to her. she didn't see anything bad on anybody. andrea canning (voiceover): she told erika's parents that she and erika were supposed to hang out that afternoon, but never heard from her. detective