He's absolutely right. Only people that care about doing things in a lawful manner care about how they get there weapons. All the paper work in the world wouldn't stop a criminal from getting a gun.Unless you have a law similar to that of China or Japan, criminals DON'T care.Japan gun law:
Japan prohibits gun possession by citizens unless sporting or hunting which is limited to shotguns and rifles that are single shot (semi-auto and full auto are restricted to military and police). The gun owners are required to take a class once a year and pass a written test. Police will check on the owner once every 3 months during an unannounced visit, they will inspect the gun locker and proper storage of ammunition and firearm.

The lady who's husband was killed at 33 should not have been so hostile to the father. If her husband or someone in the area had been carrying a weapon he might still be alive! If anything she should be commending the guy for refusing to let himself or the people around him be in the same situation her husband was when he was shot and killed.