I don't think someone who would do such a thing will give an answer that will help anyone, honestly. You have to factor in that they were probably young and dumb too. And the fact that they did do this, says a lot about how they felt about the situation. Why would they care enough to say something to people? They didn't care enough when they hurt the people in the first place. Why would that change? The only answer you'll get if you do get one will be "yeah i faked it, sorry!" They obviously aren't feeling apologetic enough to reach out as is, why, when confronted, will they be apologetic after the fact? I hope that if you do find out, you're not going to let their reaction put you into any negative place, Aethalas.