Every time a student gets hold of guns and begins to shoot them all over campus, wise people theorize.
What was it that brought him (seems always to be a "him") to such extreme action? What personality factors should have made his state of mind obvious? What behavior should have been spotted so that he could have been offered care and guidance?
Such a discussion has again emerged after Colton Tooley, a 19-year-old math student, allegedly availed himself of an AK-47 and randomly shot it around before shooting himself on the University of Texas campus.