Hi guys, 27/m from Boston here following this case.
I checked out her Instagram and there was a post from a guy saying that he "remembered matching her" about a year ago and was hoping for the best.
To me, this says she is on dating apps like Tinder, Bumble, or one of the other less known ones like OkCupid, Hinge, POF, or Coffee Meets Bagel.
Almost every women I've ever dated has told me about a bad experience with meeting a guy on these apps. I would 100% say these should be the main focus on the investigation, not the Lyft driver or meeting someone on the airplane. The problem is if you "unmatch" someone, all conversation is lost and there is no trace or history to look back on, so LE would need to work with the company which it might be possible that they don't even have info anymore.
I can only imagine that at 3am in the morning after a long flight its easy to make a poor decision based on tiredness, desires, feelings, or what have you.
Just my 2 cents. Thoughts and prayers from Boston.