Even though, it is on-going struggle to control illegal weapon smuggled across the borders but at home, we should track the sale and ownership of weapons by creating a data base just like fingerprints database by FBI.
Also, by creating a national database for all mentally disabled and people with criminal history and allows to be shared by law enforcement agencies to screen all applicants before issuing permits to purchase weapons.
Educating and providing better training on safeguard, safety and use of weapons for all people regardless of age level.