The Holocaust Museum shooting is a sad event and one rational conservatives everywhere should condemn in the strongest possible terms. Consider it condemned from here. There is a fringe element on the right that just might be more potent than their left wing counterparts and denying it is just as pointless as denying the Holocaust itself. Napolitano's report was at least partially correct, even if leaked for political purposes.
That said, the left should resist the temptation of trying to score points off this by trying to keep this story in the news cycle. Surely there are emotions and feelings that need to be understood, and perhaps even some guilt. Matter of fact, to be on the safe side perhaps the judge assigned to Von Brunn's case should issue a gag order--if nothing else but to calm the waters and ensure due process takes place.