Yep. I'm under no illusions that an armed staff member would have prevented all deaths. But if you look at it from an unemotional, rather clinical point of view, after the first few shots were fired, staff knew something was going on, and he could/would have been taken down. A couple wounded/dead, while still a tragedy, is much preferable to 26 dead. We're humans. There will be no way to prevent stuff like this from EVER happening, until Jesus returns. Evil is with us, like it or not, and the only thing required for evil to triumph is for good men (and women) to do nothing.