As others have noted, she made some specific allegations about what happened and where it happened. Yet, at this time, no corroborating evidence has surfaced. And there may be some contradictory statements. A brand new DA fresh out of law school would be very very reluctant to file any charges in this situation without some solid substantiation. I think this case is unraveling. Her character as to past events will be strongly attacked if she takes the stand. Still, there might be a couple of guys in trouble, but I don't think it will be for the most serious charges.
Solicitation or Conspiracy to committ kidnapping. Anything less than rape, will be laughed out of court.