I'm here for the Rick Grimes reference. I'm always here for Rick.
Also, as far as Riley goes he doesn't like psychology at all. It unsettles him, so there's little chance he'd be in his class.
I just apped adamlafferty (so hopefully) he's 25 this year, probably went to Fremont together? Couple years below and definitely not in the goth crowd though. If he remembers everyone he might remember him in passing?