We cannot stop every act of senseless violence. We cannot know every evil that lurks in troubled minds. But if we can prevent even one tragedy like this, save even one life, spare other families what these families are going through, surely we've got an obligation to try.
God's justice stands forever against the sinner in utter severity. The vague and tenuous hope that God is 'too kind' to punish the ungodly has become deadly opiate for the consciences of millions. It hushes their fears and allows them to practice all pleasant forms of iniquity while death draws everyday nearer and the command to repent goes unregarded. As responsible moral beings, we dare not so trifle with our eternal future.
It is true that there is a thing crudely called charity, which means charity to the deserving poor; but charity to the deserving is not charity at all, but justice. It is the undeserving who require it, and the ideal either does not exist at all, or exists wholly for them.
Slavery is founded in the selfishness of man's nature - opposition to it is his love of justice. These principles are an eternal antagonism; and when brought into collision so fiercely, as slavery extension brings them, shocks and throes and convulsions must ceaselessly follow.