UPDATE: Shooting rampage at public event in Tucson leaves 5 dead, including federal judge; Rep. Gabrielle Giffords critically wounded but expected to survive; suspected gunman in custody, motive unclear

Arizona Rep. Gabrielle Giffords is in an intensive care unit following surgery for a gunshot wound in the head at close range, the University of Arizona Medical Center announced Saturday afternoon. Read the full story after the jump…

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(FOX)–Dr. Peter Rhee, a surgeon and chief of the trauma, critical care and emergency surgery, said he is “very optimistic” about the congresswoman’s recovery.

However, Federal District Judge John M. Roll was shot and killed during the town-hall style event outside a Safeway grocery store in Tucson.

At least 19 people were shot at Giffords’ “Congress on Your Corner” event, including three members of the Democratic congresswoman’s staff in Arizona. Five have died, including one of Giffords’ aides and a 9-year-old girl. Several others are in critical condition at the university hospital.

State Sen. Linda Lopez, a close friend of Giffords’, told Fox News that the three-term congresswoman was shot in the temple and the bullet exited through her forehead. Lopez said Giffords was responding to commands.

Fox News confirmed that a 22-year-old white male named Jared Loughner was taken into custody as the alleged shooter. Police reportedly had also arrested a second suspect, however
law enforcement official told Fox News they believe Loughner acted alone after a “preliminary search” for a second suspect turned up no one.

Authorities said they believed Loughner had sent out a video saying that he expected Saturday to be his last day and had written on his MySpace page several “final thoughts” that included rants on illiteracy and the failure of U.S. currency to be backed by gold.

According to the law enforcement official, the suspect began shouting something before shooting wildly with an automatic weapon. Shots then rang out from the crowd — a security agent or someone else fired at the suspect who survived.

Giffords, 40, has held multiple “Congress on Your Corner” events over the past four years, an aide told Fox News, adding that she had held three previous events at this venue before.
In November, Giffords was re-elected to her third term as representative of Arizona’s 8th Congressional District, winning a tight race against a Tea Party-backed candidate. She was one of 19 Democrats who voted against House Democratic Leader Nancy Pelosi for speaker this week.

Giffords, a gun rights advocate, was first elected to Congress 2006 when she rode a wave of Democratic victories. However, she separated herself from most in her caucus when she criticized President Obama last summer for not sending more National Guard to the U.S.-Mexico border.

Giffords, who had been threatened previously, was a member of the Arizona House and Senate before coming to Washington. She is married to astronaut Mark Kelly. Sen. Bill Nelson, R-Fla., said Kelly is training to be the next commander of the space shuttle mission slated for April and her brother-in-law is currently serving aboard the International Space Station.

Bipartisan expressions of support poured out for Giffords in the hours after the shooting with Rep. Michele Bachmann, R-Minn., issuing a statement saying her “tears are flowing” for Giffords and Rep. Raul Grijalva, D-Ariz., saying he was “sickened by the horrific attack.”
Obama issued a statement, calling it “an unspeakable tragedy.” He ordered FBI Director Robert Mueller to Arizona to lead the investigation.

“I’ve spoken to Arizona Governor Jan Brewer and have offered her the full resources of the government,” Obama said in live remarks to the nation. “It is a tragedy for Arizona and a tragedy for our entire country. What Americans do at a time of tragedy is to come together and support each other. …We are going to get to the bottom of this and we are going to get through this.”

Brewer said law enforcement and government at all levels have a “shared determination to ensure justice is fully served.”

“I am just heartbroken,” Brewer said. “Gabby is ore than just a colleague, she is a friend. She has always been a noble public servant … It’s an unbelievable tragedy that the people of Arizona experienced today, one of which of course in our worst nightmares we never would have imagined.”

She added that the shooting is not something that shows favor for the state, but that the incident doesn’t represent the vast majority of sentiment among Arizonans. As is the case elsewhere, “We have disturbed people in our community that do terrible, violent things.”
A spokeswoman for the U.S. Capitol Police said the agency “remains at a high level of readiness, consistent with our operating condition on U.S. Capitol Grounds. We continue to maintain a robust presence.”