Why would any University welcome back students who go around blatantly threatening to rape girls? Do the trio who made these threats have to take it one step further and commit rape before the University grows a backbone and dismisses them permanently?
How did the trio manage to enrol at University? They don't sound like they have a scrap of intelligence between them.
Did this trio come from disturbed backgrounds? What are their parents like? Who brings their offspring up to behave like this?