If I could take that nutty Leftist lady back in time I would send her to Luby’s Cafeteria in 1991 in Killeen, Texas so she can see what happens when no one carries except for the criminals resulting in 22 innocent people get murdered.
http://en.wikipedia.org/wiki/Luby%27s_massacre
http://www.youtube.com/watch?v=e9NDnqS5h9k
She would only be more convinced that the problem was that we had not taken all guns out of society. If only we had magically done that, then the murderer would not have had a gun to kill people with....
Of course, that is magical thinking, with the government as the magician. It is very common among people who worship the government as their god.