When you say "pressed charges": Did she press charges with the local police?
Or with campus police or with college administrators?
And if "it didn't go anywhere", was it because the local police/DA decided to drop the case, or was it the college?

Same thing happens when doctors abuse patients. The hospital where I delivered had an anesthesiologist masturbating in the face of his patients. The 5th patient to complain to administration was told "He's touchy feely". She went to the police and 20 women came forward.