Treat Guns like every other controlled substance, (Liquor, cigarettes, Cars.
Put the 1st burden upon the owner of the weapon, mom,dad, whoever. It needs to be locked, and stored, with only parential access (one key) The parents are liable just as if they gave liquor or drugs to a minor.
Put the 2nd burden upon the NRA, they want the freedom, they need to monitor and regulate the rules and regulations to make most of these incidents not re-occur. They have the experts, have their experts participate in the solutions AND help monitor their solutions.
3rd – I am afraid that gun shows & private sales must be addressed, if a private individual sells at a gun show, or privately, the paperwork must be submitted through a licensed gun dealer.
I’m a gun owner, and think these incidents are not excusable, so unfortunately parents/gun owners MUST take ownership of THEIR weapons. I know there is no perfect solution.
Good Luck on your challenge.
Location: Lincoln NE