Hours after Gabrielle Giffords finished a plea for increased measures on gun control, an unknown gunman went on a rampage in a Phoenix, Ariz., office complex, wounding at least five people. Three are in the hospital with life-threatening gunshot wounds, and the gunman himself is, at the moment, at large. "At this point we don't believe he is in the area," said Sgt. Tommy Thompson. "This doesn't appear to be a random type of incident" ...