Hall-ucinations

Tell me what I’m missing here…
As she takes her final walk through the halls of Westview High, Susan spies a student at a locker. But wait, aren’t all the students gone for the summer? There’s something familiar about that girl, though… Whoa! That geeky girl in the bobbysox is Susan’s teenage self!

A little further along, Susan encounters another female, who, judging from her trajectory, has emerged from a solid wall to cross Susan’s path. Can anybody reading this (Mr. Batiuk?) tell me who the hell this woman is? She’s wearing an ID badge, so she must be a teacher…but surely we’ve met all 5 or 6 members of Westview’s teaching staff. Before she was forced to turn it in, Susan was never pictured without her ID badge…so is this the ghost of the future that Susan would have had? The hair’s a different color, but we’ve seen Susan as a blonde.

There’s no ambiguity in the last panel, that’s for sure. A mop, two brooms, and a garbage can bear witness to the final disposal of Susan Smith Westbrook.