Today, we see again how evil work, how it embraces the specter of the netherworld. How it consumes life. This day, when the marathon runners remembered the horror of Newtowne and the children who were taken at too young, this day will itself come to be a memorial day.
We don’t know the how or the why of today. But, in the end, does it even matter? There is no “why” that is a good “why.” There can be no good "why." Whatever the "why" is, it can only be bad.