I'll start.
There are lots of layers to that question. One of the things that we know about supporting young people around teen violence is that it's not just one solution, or one face to that question. There's the family dynamic. We have relationships where.... Whether or not the teen is honest about how healthy the relationship is, the parents suspect things are not going well. There's the school environment, where the teen is placed in a different environment and other dynamics are happening, and then we have the community at large.
To answer your question, we need a multipronged, multi-sector approach to dealing with teen violence. It can't just be police. It can't just be schools. It can't just be community-based programming. It has to be all of us together, working as one, so that we're all speaking the same language and we all understand the barriers to accessing services for teens, especially.
School systems can also provide such a rich value of knowledge around what is actually going on in the school systems for teenagers, and relationships that are formed within those environments.
I'll leave it to Emily if she wants to add anything to that.