Evil

You can quote statistics about how violence is down in schools over the course of history.  While that may be true, we need to notice that the character of the violence has changed dramatically.  Two people getting into an argument of some kind and one of them ending up shot is a very different kind (and in many ways a lesser form) of evil from the randomness of shooting up a classroom of kindergartners.  Perhaps we need to admit, at least on some level, that the Christians are right and that the real problem is within the human heart.  Laws will not fix the problem.  Law enforcement will not fix the problem.  Armies will not fix the problem.
Love is the most potent arrow to strike the heart.  In wounding it heals.  In tearing it makes whole.  In destroying it rebuilds.  There is only one who can fire such an arrow.
What we need to realize is that the darkness that repulses us in others is the same darkness that resides within us.  It is the darkness that refuses to welcome the light and chooses instead to become its own light, its own guide.  Such a light is darkness indeed!  If we recognize the darkness within ourselves, we can love when faced with the darkness of others.  This is the beginning of the solution.  The end is to step into the light that is light and chases all of our dark corners away.  It searches the house for every corner of darkness and removes it entirely.
God grant us light, love, and healing.  Give us all the humility to turn to you so that we may have our dark places brought to light so that we may live in your peace.  Amen.