Rape on campus is in the news again, because, presumably, of the prestige of the campus where the rapes in question happened. Whenever the topic of violence along these lines comes up, at whichever school, I always want to say the same thing: skip the school, call the cops. This is true whether or not fraternities are involved. (For more on the Flanagan article, see Miss Self-Important.)
My advice, then, to any college students reading this: If something goes wrong, you'd be better off thinking of yourself as an 18-19-year-old who just happens to live in whichever jurisdiction than as a member of your campus community. At least at first. Once things have been sorted out, you can then bring up issues relating to the culture of the campus, or the student status of the young man in question.
That warm and fuzzy community, for which everyone's been - if we're talking an even slightly selective school - hand-plucked for their impeccable character, well, that community includes whichever man gave or is giving you criminally-actionable problems, if he's also a student. He won't merely be innocent until proven guilty as in a court of law. He may end up never really charged, just charged with breaking school policy, which at the end of the day doesn't mean anything. The school might agree that an incident occurred, but simply not do anything about it.
"Holistic" has, in a sense, replaced in loco parentis. By definition, nothing terrible could happen at college, among students, because of the impossibly high bar set to be a student at whichever institution. Once every student is officially of upstanding character, as vs. merely someone who met whichever academic requirements, it becomes that much more complicated to make sense of how students can be criminally terrible to one another.