Someone reportedly helped them hide and could face charges.
School officials maybe deserve charges too, and at least a lawsuit.
I've heard this said, but based on the account available to us through the news, I'm not really sure what more they could have done. They didn't know the kid actually had a gun on him, like the parents did. They knew about the behavior problems, and were trying to initiate a plan of of intervention, which is what you're supposed to do. It's harder to accomplish anything if the parents aren't on board though.
Well, school officials could have detected hints of bat-shit craziness in parents and then assumed the worst - that they had just bought a gun and handed it to their son.
Well, no, they can't. Practically and legally, you can't assume and act on the worst. And there's not a lot to be done anyway. What are they going to do, suspend the kid? For how long will that solve the problem of a child who has decided on mass murder as the thing to do? What he needed was therapeutic treatment, and you have to have the parents' consent for that, or legal circumvention thereof, which takes time.