I wonder if Schuyler could be
NamUs UP#13029 ? The age range is off, plus Schuyler's teeth look to be in good shape and this doe has "teeth were in poor condition with decay noted to the front top teeth" and it doesn't feel like that could happen in the seven to nine months after Schuyler's disappearance. And I think Schuyler is actually bit taller than is stated on this doe's page.
However, this doe was found with a small brown moose stuffed toy in the left front pocket of their jacket. From the circumstances of discovery it seems like this doe took his own life. To me, the moose is a signal that he has placed there intentionally to signal to those who found him that he is Canadian. Or maybe he was a homesick Canadian. Also, there are a few photos on the Help Find Schuyler Bierkos page where he has a stuffed toy or plushie of one kind or another. No little moose toys, though.
The Help Find Schuyler Bierkos FB page mentions he may have been travelling to the Emerald City Comic Con in Seattle, Washington at the time of his disappearance and that his passport was unaccounted for among his possessions. This makes me think maybe he could be our doe with a cute little moose stuffed toy.