In times of such enormous tragedy, here 33 dead, there is a really need to understand how this loss could have been prevented. And the question will be why psychiatry didn't read the signs. Those of us who work in the mental health field know that psychiatrists can rarely make these predictions accurately. It would seem to me that the obvious sign that things are about to go horribly wrong are when a clean cut college kid goes out to buy a Glock. That would about do it.