Why?

As more details surface about the massacre at Virginia Tech Monday, it makes less and less sense. Who was this man? Why would he do this?

From a religious perspective, the questions increase exponentially. I start to think about the problems of evil, because no other explanation for such horror makes sense. What is evil? Where does it come from? How does God fit into that picture? How do we pray about this?

Theologians have always and probably will always wrestle with these questions. But I'll open it up to you. How do you make sense of this actions when looking through eyes of faith (any faith)?

UPDATE: College students at Centenary found the verse I was looking for earlier today and used it in their Memorial service today: "In the same way, the Spirit helps us in our weakness. We do not know what we ought to pray for, but the Spirit himself intercedes for us with groans that words cannot express." (Rom. 8:26)