Take a common-sense and Consitutional approach toward resolving mass-shootings:

How to fix the mass-shootings problem:
1) Identify problem:
Children have been raised without the guidance and responsibility required to produce decent citizens.
2) Determine cause:
Until the past several decades, there was usually at least one parent in the home. Between school and the one parent, children were taught and raised to be moral, decent and respectful of others. While teachers were primarily responsible for education-related matters, parents were primarily responsible for teaching their children how to be moral and respectful of others.
3) Solution:
Stop spending our country into oblivion and allow parents to once again raise their own children instead of having to work to pay for more irresponsible government spending.