This is one of the most level headed and accurate opinion pieces I have seen up in the mainstream media.
Gun control or carry permits won't stop mass murder - CNN.com
He makes the point that mass murderers are unlike more traditional criminals. Their need to kill drives them to great lengths in planning and preparation. There was no way this was going to be stopped, regardless of if we had tighter gun control or more lenient gun control. Good for CNN for at least posting a reasonable opinion.
This is probably true but I'd still prefer to have my Glock 21 on me so I can at least return fire if I get the opportunity. 45 ACP might not be effective against a protective vest but it will penetrate a gas mask if one can get close enough to take a head shot.
This is a tragedy, and we can expect the usual suspects to exploit this if they haven't done so already.