[Vautrin]

As you posted about your dad, that he has a gun to protect himself from bears, there is no real alternative to that. You can't control a bear with your bare fists, or even a knife. It would be insane for him to live without a gun, if there is a real risk.

But if you live in the middle of a big city chances of a bear appearing on the 7th store of your appartment complex are slim.

Constitutional rights are important. But the problem is of course, that the criminals who murder, commit murders et cetera, is that the people who take advantage of the constitutional right to own guns, arre not living up to the constitutional standards expected of (hu)man.
And the tragedy is of course that you can only punish the criminal after the act. When someone has lost a loved one.