I would find it interesting/upsetting, but like the rest of my T's life, would decide I did not want to spend the energy worrying about situations that are not part of my life and relationships.

No way I can know what happened between T and that student and who the student is, etc., not my job, but I would use as much logic as I could like Fartraveler to distance myself from the situation (if the student was expelled from the school, the professor wouldn't be doing that, the school would and would have to have an awfully lot of "official" people who thought the student had a problem I'd think, like the Tucson shooter and his school).

It seems likely to me that the student got caught and then concocted the story after the fact about having approached the professor; it doesn't make sense for the professor to have ratted out the student for "spite" after the student approached to ask was it okay.