So far the popular focus has been on the obvious tragedy of so much senseless slaughter of innocents and on the insanity of the perpetrator. When we move on from here it will be about whether it could have been prevented and how a repeat can be prevented.
That there will continue to be those who are and or pursue insane acts is a given.
That these offenders will access items to magnify their actions is also a given, whether it be using a car on a crowded sidewalk, a gun in a lecture hall, a blaze in a cafeteria, or a bomb in a crowded market.
Neither of these can be prevented regardless of rules, laws, and regulation. This does not even touch upon the impact of these rules, laws, and regulation will more likely impact and restrict sane and law abiding citizens than the criminal and insane.
But rather than accept futility and victimization there remain possible actions for consideration. Given the opportunity to defend ourselves when faced with imminent threat of death, certainly we all would take steps to defend ourselves. We just need the means to equalize the force threatening us. I am not suggesting that everyone be armed. But I do believe that those with the knowledge and familiarity of firearms, and having been deem safe from sound mind and lawful enough to have a license to carry firearm, be allowed to do so in public places deemed reasonable by each state legislature.
I wish someone at VT had been armed and willing to stop the masacre. That there were those who willingly risked their lives so others could escape demonstrate the "willing to stop the masacre" was not the limiting step. It was the absence of arms except in the hands of a madman.