This is Glen!
You can tell this is Glen, and not someone impersonating him, by the look of surprise on his face. This is how he looks in most of the pictures I have of him.
I'm not sure why he is surprised, and it has been the pondering of this question that has kept me up at night. Did he not expect me to be there to take the picture? He should have, we drove there together. Maybe there was a bear behind me, and that was what was causing him such stupefaction. Was he surprised he caught a fish? I wouldn't think so, because he is a perfectly competent fisherman. You can see here as well, notice the pursed lips and drawn eyes.
But I doubt it!