The psychotic drug approach
The problem really is mental illness
A primary solution to the problem is to have weapons locked up at all times if you have a child with mental health issues.
In a safe, or at least full trigger locks which are difficult to remove.
This might have stopped the problem in CT
A bigger solution would be to add anyone being treated for psychotic condition to a registry that would be searchable on a background check. A doctors approval would be the only way for this person to get a weapon.
This wouldnt catch all, but would weed out a few.
The fact is.... Not everyone that wants a gun is fit to have one.
Our 2a rights are being threatened by actions of a few.
Maybe its time to cull out the few.