her name was syllania edwards.ding to the website, she'd been a 13-year-old runaway from a group home in lawton, oklahoma in 2003. >> it was her ear. her ear that was exposed in the photo. and it was her eyes. that was what kept me -- kept bringing me back to her. >> reporter: dental records from oklahoma confirmed that jane doe number 7 was in fact syllania edwards. one answer found. but that only generated more questions, like when did the oklahoma teenager get to new mexico, and who brought her? >> i don't know. and that's what we're trying to figure out. >> possibly the killer? >> don't know. i have no idea how she got here. >> reporter: so detectives started checking with police departments and jails throughout the southwest on the hunch that syllania, as young as she was, might have been entangled in a prostitution circuit that shuttles women from city to city. >> what we see very often is the women involved in prostitution work in what's called the circuit. so they'll move from albuquerque to phoenix to las