We need to remember that harsh sentences do not reduce or deter crime, so really, what purpose are we using them for? We NEED (and I stress the word NEED) to deal with the issues and factors causing crime.
If we could provide better living conditions and opportunities for the socially disadvantaged people, we could prevent crime significantly.
If this boy had gotten help from somebody, parents, teachers, etc. to help him deal with his serious issues, that accident may not have happened. Instead of getting help, he was ignored and ended up harming someone.
Family counseling sounds like a better option to me than prison does. This teen will eventually be released from prison, back into his dysfunctional family, and his crimes will simply perpetuate. By putting people in prison is like covering up a wound with a bandaid. It's a quick fix, but its not really solving the deeper issue or problem. If we are REALLY invested in helping this teen from re-offending and preventing crime, then we need to address his underlying issues.