The tragedy in Tuscon is clearly a horrific example of how the neurosis of society can go horrendously wrong, and the man who perpetrated these acts was clearly sick (see his youtube videos).
However, the Sheriff has come out with all sorts of statements to the effect of 'it's the political atmosphere created by certain people (republicans) who monger hatred'.
This is the same guy who said it's racist if you don't support universal healthcare. This is the same guy who is on record as saying that it is racist if you want to secure the borders.
What sucks is that millions will hear this guys biased testimonial, and since it's coming from a respectable person, take it without a grain of salt.
I don't want to play the 'they'll use this to attack 2nd amendment rights advocates' quite yet, however, the public is still tender in regards to this tragedy and I think a nuanced approach is fitting.