I agree! Her mother said that they have known these girls since middle school but I am telling you, girls are MEAN. I honestly think that they know something that they are not saying and this is why I think that.
1) Most girls do not go to the bathroom alone during events like this.
2) Why would she have gone outside? I don't believe that for a minute. Most everyone knows that you can't get back in. She had been looking forward to the concert for months too so why would she risk not seeing the band. I don't believe this at all.
3) If the girls were really that "close" why would they have not contacted the girls parents when they could not find her? The parents called the girls 16 hours later.
I believe one of two things has happened. Either the girls got into a fight before the concert and something bad happened then and they are covering it up, OR the girl did meet up with someone there and she left with him. If that had happened, the other girls would still have known and should tell the police who it was. If they all stayed together, they would have seen who she left with or who she was talking to before she left.
I'm telling you, something is up with this and the story just does not add up.