The assertion seems to me to be that she claimed it was being passed around to other boys. This is extremely humiliating and degrading. If indeed he is guilty of this, that was a terrible thing to do.
Were he innocent would he have pitched himself off a roof? Maybe. My instinct, even as a teen, would be to fight horrible charges like that were I innocent.
In any event like any adult he should have had a lawyer/advocate present. If we are going to “treat him like an adult” it should go all the way.