No involvement from college authorities
What strikes me odd is the total lack of involvement from college authorities in this show. Of course we live today in a totally scientific and technological world and environment. There is a sense of 'political correctness' that people shouldn't believe too overtly in ghosts or blame misfortune, ill luck, and accidents on the supernatural; after all, that's the dark superstitiousness that people lived under during the Medieval Ages. I can understand why college authorities would have to 'pretend' there is no such supernatural problem.
Still, it would have been wise to consult religious authorities for their opinions and course of action. The end result might have been a specially trained and experienced religious authority or priest dispatched to conduct a location blessing, or if necessary, an exorcism. Even before the advent of Christianity early peoples had to rely on shamans and their ilk to dispel spirit hauntings, whether of human or demonic origin. Sometimes, expelling such entities was not feasible and either some accommodation would have to be undertaken to mollify the troublesome entity.