Seems Traci Johnson would have been a second victim beheaded if there was not a concealed carry gun owning fellow at the scene of the crime. Often these reports are underplayed in the media and the fearful reports of people who do crime with guns are overplayed. Helps drive demand for government and control of course. Creates a monopoly of force with government, which everyone knows is rife with corruption.
Here is a good article on the positive effects of legal gun owning citizenry.