I'm going to just throw this out there as a distant possibility:
In 2013 and again in 2014 in Portland/South Portland illegal massage parlors operated by the same two (or more) women of Chinese ethnicity were busted. Neither listed home addresses in Portland- one had NJ and CT addresses for mail, the other was from Flushing (Queens) NY. I wonder if this could have been someone who worked at those or similar establishments. (I have to admit that *rarely* are the cases we come across here related to human trafficking, particularly sex trafficking rings, but for some reason I think this woman was possibly involved in something adjacent to the sex industry if not the industry itself and may be missing and unreported from an entirely different state or country.)
Edited to add: there are a small group affiliated with two of the women who were charged (owner and manager) who applied for massage licensing in two other states in 2011 and 2012 (for example: Kentucky, see top of page three):
http://bmt.ky.gov/Meeting Minutes/Meeting Minutes September 24, 2012.pdf )- note other names of affiliates in the Kentucky meeting minutes were subsequently charged in other states for similar. I just think there may be someone missing related to these businesses.