The latest update from the Pima County Sheriff's Department now says that twenty people were shot yesterday in Tuscon, killing six and wounding fourteen, including U.S. Rep. Gabrielle Giffords. Among the dead are a Federal Judge and a nine-year old girl.

Six people were killed and 12 others wounded, including U.S. Rep. Gabrielle Giffords, when a gunman opened fire in front of a Safeway supermarket in Tucson, Arizona, authorities said. The congresswoman had been hosting a meeting with constituents Saturday morning when the attack began.

Here are the latest developments as confirmed by CNN:

House Speaker John Boehner has asked that flags on the House side of the Capitol be flown at half-staff in the wake of the shooting in Arizona, marking the death of Gabe Zimmerman, who was Rep. Gabrielle Giffords' director of community outreach. "An attack on one who serves is an attack on all who serve," Boehner said Sunday. "Such acts of violence have no place in our society. These tragic events remind us that all of us, in our roles in service to our fellow citizens, comes with a risk. This inhuman act should not and will not deter us from our calling to represent our constituents and to fulfill our oaths of office. No act, no matter how heinous, must be allowed to stop us from our duty," Boehner said.

Authorities executed search warrants late Saturday night on a car and a residence where suspect Jared Lee Loughner lived with his parents, a law enforcement source said.

The law enforcement source said that Loughner's parents appeared to be cooperating with authorities, but the source did not know to what extent.

Loughner, however, was still not cooperating. He had earlier invoked his right against self-incrimination.

The sheriff's office said early Sunday that the correct name of one of the victims who died in the shooting is Dorothy Morris.

The Pima County Sheriff's Department is expected to hold another news conference at 11 a.m. Sunday MST.

The University Medical Center in Tucson will offer a patient condition update at 10 a.m. Sunday MST.

As of 3:45 a.m. Sunday, Giffords remained in critical condition, said Darci Slaten, spokeswoman for the medical center. Of the nine other shooting victims taken to that hospital, four others were in critical condition and five were in serious condition.

Early Sunday morning, the sheriff's office released a surveillance camera photo of a male between 40 and 50 years old who is "possibly associated with the suspect." The dark-haired man was last seen wearing blue jeans and a dark blue jacket, and was seen at the location where the shooting occurred.

At 2 p.m. Sunday, a caucus conference call has been scheduled for House Democrats and their spouses to get an update on the shooting, two congressional sources said.

At 8:30 a.m., Speaker of the House John Boehner will address the media in West Chester, Ohio, about the shooting.

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