I was looking at his Twitter just now (Thanks, @mlhenn) and had an observation, but then I had another concerning one when I looked at his replies:
The first observation was that on March 7, just 2 days before going missing, he sounded in a positive and lighthearted frame of mind posting that he was gonna “tell my future grandkids” something. But when I looked at “replies” I thought: was he being harassed by some troll? Anyone else notice that?
Could it be a current or former student messing with him? Insulting one’s sexuality/romantic history strikes me as standard juvenile bullying. JMO.