The New York Times breaks down the political repercussions here.
Other than John Roll, those killed were:
Gabrielle Zimmerman, 30
Christina Green, 9
Dorothy Morris, 76
Dorwin Stoddard 76
Phyllis Schneck, 79
Rep. Gifford remains unconscious after being shot in the head though doctors appear to be optimistic about some sort of recovery. What sort, remains uncertain.
“Whoever did this, whatever their reason, they are a disgrace to Arizona, this country and the human race.”
Andrew Sullivan provides a valuable run down of links and commentary on the assassination attempt here.
The lunatic is profiled here. It's pointed out by a reader on Sullivan's blog that he is at the age when people suffering from mental diseases often have their first psychotic breaks.
Responses from local congresspeople are here. Rep. Dahlkemper:
Ms. Dahlkemper recalled Ms. Giffords' reaction to their being among 20 representatives targeted by former Alaska Gov. Sarah Palin's website in the recent election. The site featured a map of the country with rifle crosshairs marking each Democrat's district.
"She was in the crosshairs of Sarah Palin, as was I," Ms. Dahlkemper said, her voice rising in anger. "We were both one of those. So that tells you what is going on with the rhetoric in this country, that has got to stop."