>> reporter: officials say williams concocted a daring scheme in 1998, posing as a nurse and continue vining the new mom to hand over her baby. hospital staff believe williams was a relative. a reward was offered and kamiya's mother made an emotional plea for her return. >> i just want you to bring my child back. that's all i'm asking from you. >> reporter: over the years investigators received more than 2,500 tips but eventually the case went cold, until w. >> we had a caller to our 24 hourotline call us, to share information about who the abductor is and where we might find kamiyah mobley. >> she may have started to suspect she was a kidnapping victim. to the outside world, they appeared to be a typical mother and daughter. >> as a family, they was always going places, always doing something. >> reporter: she met her biological family for the first time on video chat friday. it will be um to her to decide when they'll meet in person as she comes to grips with her newly uncovered past. sarah dallof, nbc news.