dmpoole said:
I would have thought he'd be under the age of responsibility.
In many states, there's no such thing.
It's a complex and incoherent picture, but the criminal justice system is basically split into the normal (adult) and juvenile systems. Exactly when a child ends up in which system varies enormously from one state to another. Many states don't have an age below which a child caanot be dealt with by the juvenile system, and among those that do, the age differs. Many states also have
some offences which can be dealt with by an adult court, regardless of the age of the 'accused'. And for other situations, some states start in the juvenile courts, but cases meeting certain criteria can be transferred to adult courts, while others start in the adult courts for certain categories of offence but cases can be referred back to juvenile court.
Oh, and cases tried in adult courts usually are subject to adult penalties, and in no small number of cases, punishment will take place in adult institutions, not children's ones. This can apply down, certainly, to age 13.
Frankly, and this comes from someone that normally defends (up to a point) the US stance on most things, this whole business is a national disgrace.