Well, you can never feel safe around a person who carries a gun around with him. I guess you keep a radioactive deposit under you to keep people away. And point guns at people with your FREEDOM to have your way.
There are other ways of protecting people and their rights other than having animals roam around who will shoot whenever there is conflict of interests(I understand that not everyone is like that).
Just so you know, I am from the same City and University as the victim in this story. In our country(most other countries too) we, the common citizens, which includes most of the population, don't own firearms, use firearms, even as show-pieces or even see them everyday. It is hard for us to understand why they even allow you to own them.