Read other letters about this article
The police did what they thought was the right thing to do. I'm sure they are having a hard time not beating themselves up about what they "if only" could have done already. We don't need the media speculating on whether or not they could have had a stroke of divine inspiration and foretold that a mass shooting would take place.
Unless and until the media and the blogosphere would like to be the people charged with informing the students what to do next, would like to be the people running toward the gunshots instead of away, would like to be the people desparately trying to end the unfolding tragedy instead of standing there jawing about it, would like to be the ones thinking bloodsweep, JVD, airway, get a backboard, would like to be the ones in the CISD the next day, would like to be the ones saying "I wish we could have...", unless you would like to do those things, butt out.
The students are going to feel this way. After any disaster or tragedy, victims express feelings that they think more could have been done. That's natural. What is ghoulish is for the distant electronic bystanders who know next to nothing about it to pile on.