Be very careful in the discussion of
SCCC and in other discussions of students (or faculty, or staff, or visitors, etc.) carrying weapons. This would NOT be a barrier. No law-abiding citizen carrying a gun would fire before believing a person is in mortal danger - that is, that the shooter has already fired or is about to.
At VT, had someone CHOSEN (it's always about choice - no one should be required to carry) to be armed, it's likely (not 100%) there would have been fewer fatalities. I can't imagine anyone arguing no one would have died. Guns are not bullet-stoppers.
At NIU, given the number hit and the speed with which it ended, it's not likely anyone's life would have been saved. But as it was, the students were fish in a barrel.
At Columbine, had a teacher or staff member been armed, fewer would LIKELY have died.
I recall one of my first experiences after I started learning to shoot - my father, who carried always, whether legally or not, I don't think he cared, reminding me of the McDonald's shootings years ago in San Diego. I remember him saying "If someone like me had been there, there would not have been 12 deaths. Some would have died, but not 12."
Ask
Suzanna Hupp what she thinks.