I wonder what we, as church and society, have learned from this tragedy. What do we know today about how to avoid predation of children by adults? I think we've learned how to recognize the problem, how to report instances, how to litigate cases, how to penalize those who offend or enable offenders. But have we learned how to make our children safe from predation, or have we merely forced such perversions underground for the time being? 
I'm not sure how to answer those questions. I'm not even sure we're asking such questions in our church and society. For that, we'd have to agree to explore the dark side of human sexuality without presuppositions, and I don't think we're ready for that. I base that judgment on church teachings and theological treatises that continue to discuss sexuality in terms of concepts instead of a dynamic force that manifests itself in everything we say and do. If that's true, then the predators will be back, and we won't be prepared for them next time, either.