The issue I have is with the process before and after these things happen. Basically:
1) Anyone who does not have a record or mental illness is deemed responsible to own and carry a gun. Some states require a 40 hour course, etc, for CCW.
2) People are regularly encouraged through ads, groups, pundits, etc, to carry weapons in public for the intent of protecting themselves in otherwise gun-unrelated situations.
3) When a discharge does happen or the gun is left out and children find it, etc, and here's the important part, that person is deemed irresponsible and then disappears into the determined punishment.
At what point does it become reasonable to question how we determined "responsible" to begin with? Currently it seems the only criteria is to not have a criminal record, or at best ~40 hours of coursework. Compare that with driving licenses, where someone must drive under supervision for a full year, and then pass a test. By claiming they are responsible gun owners, as this man would have been deemed not an hour before, we are then responsible for that definition. Outside of this man not having a criminal record before, plus potentially ~40 hours CCW(if his state requires it), what makes you sure of his responsibility?