Depending on the exact circumstances of the case, she may well have a credible claim against all 3 - the perpetrator, fraternitay and/or the school. In order to prevail she will have to show damages (eviidence of the rape will suffice) and the fact of either an intentional or negligent act on the part of the defendant(s).At this point, she would be well advised to seek the counsel of an experienced personal injury attorney in the area of where this incident happened. They can best determine how to proceed once they have heard all of the details of the case. For a first-time consultation, typically there is no fee.