Had this been an isolated submission, I don’t think it would have led to his being sent for psych evaluation. I reckon his writing and demeanor was creeping out the entire class for some time. That seems to be borne out by the earlier post quoting a former classmate in the writing class.
I’ll give him this - in his rambling note, extra points for the use of the word debauchery. Now there’s a word you don’t see every day.