Or works at one of the biotech labs that are all over place in Princeton (they fight over that "Princeton" address, you know; the post office, if I remember correctly, has or had a waiting list for their PO boxes). Or both. Or was just passing through. Or was looking for a job or taking classes or thinking about taking classes at Princeton. Or is trying to blame it on Princeton for some reason.
If I keep this up, my head will blow up. I'm glad I'm not on the task force investigating this heinous crime.
Maybe works/studies/part time, what ever, at the facility in NYC where the Ms. Nguyen worked (though maybe connection to where Ms. Nguyen lives?)