Time Magazine, the Voice of America

Jeffrey Kluger writes:

Of course, plenty of people fail tests and end romances and even suffer unspeakable abuse as children. And while there are a lot of narcissists in the world, many of whom crash and burn in their personal and professional lives, only an infinitesimal fraction of even the most unstable people lash out in remotely as violent a way as mass killers do. So what should we look for in people for whom such a homicidal rage is a real risk?

From this article, in which a journalist attempts to psychoanalyze a killer.

With all the cracks I make about terror, the truth is that you can be killed at any second by someone flying a plane into you or gunning you down. The arms race is on! As DB writes in a recent email, "Better get your pistol permit like I just did!"