A year ago this week, Congresswoman Gabrielle Giffords was shot while meeting constituents outside an Arizona supermarket. Six others were killed and thirteen injured when Jared Loughner unloaded thirty-two rounds of bullets from a Glock handgun into the crowd. A year later, on January 8th, Gabby Giffords led the pledge of allegiance at a candlelight vigil in Tucson. Reporter and author Tom Zoellner is a fifth-generation Arizona native. He considers the baffling “Tuscon tragedy” to be more than a random act by a mentally ill aggressor.