I think the best solution (to make everyone happy and minimize damages) would be for the team to come out and say it was someone from their team who acted unintelligently at Einstein, they apologize for everything, Gracious Professionalism is their greatest priority, they hope the FIRST community will find it in their hearts to forgive them, etc etc, The individual's actions do not represent the team, and most importantly the individual will not be named.

With that, the people "get" the culprit, the team apologizes and gets a cleared name (and even some respect from us for doing the right thing), and nobody can crucify the person at wrong because they don't know who it is.

Although, to be completely honest, I don't see why needing to know this information matters. If the team doesn't want to come out in the open, it's completely understandable, and it doesn't make us as people any better knowing who did what.