I can only say that this tragedy makes me sick. In time we will learn what would have caused a young man to do something so terrible. All too often these things are the result of a serious mental illness gone out of control (don't know if this is the case, but very often it is and I would not be at all surprised if an untreated mental illness were at play here). And as angry as I know we all are, please please don't use this as a platform for politics. Just say a prayer, if you are so inclined, or at least keep all the victims in your thoughts.