constituents outside the safeway in northwestern tucson when a single gunman went into the crowd shooting. shot her at point blank rage, we're told in the head. shot other people, as well. before those shots were fired we're told from law enforcement source that shooter said something, shouted something. we don't know what it was. at that point the shooter was taken down by bystanders, tackled. that person, we're told, is in custody. initial reporting from three very high placed sources, one reputable source on capitol hill the second a federal law enforcement official in arizona. another one a regional federal law enforcement official all told us that congresswoman giffords had died as a result of that attack. since then, the hospital, her office has said she is in