WASHINGTON POST — Tucson -Authorities are seeking a second person in connection with the shooting in Tucson Saturday that killed six people and wounded a dozen others, including Rep. Gabrielle Giffords (D-Ariz.).
Police have one suspect in custody, 22-year-old Jared Lee Loughner, whom they believe was the gunman. Pima County Sheriff Clarence Dupnik said authorities believe another individual may have been involved.
"We're not convinced he acted alone," Dupnik said of the suspect in custody. "There's some reason to believe that he came to this location with another individual."
He declined to offer details.
Earlier in the day, the surgeon who operated on Giffords said he was "optimistic" she would recover. She was shot in the head at point-blank range, according to witness accounts.
Federal law enforcement sources said that John M. Roll, the senior U.S. District judge in Arizona, was shot and killed. The Pima County Sheriff's office said that five others including a nine-year-old child had died.
A 22-year old man was taken into custody after being tackled by people in the small crowd after the shooting. One pistol was recovered and it had what police described as "an extended clip."
The man was identified as Jared Loughner, who appears to have left a trail of Internet postings, including some that express convoluted observations about government. Law enforcement officials said they believed he was a military veteran.
Giffords, who in November narrowly won reelection to a third term, was hosting her first "Congress on Your Corner" event when a gunman ran up and began shooting her and others in her entourage with a Glock handgun, according to law enforcement sources.
Eyewitness Steven Rayle, a Tucson doctor, said he saw a young man wearing sneakers and what appeared to be navy blue sweats approach Gifford with a semi-automatic handgun raised. The man shot Giffords once in the face, he said.
After Giffords fell, he said, a number of people near Giffords sought to flee but were trapped—hemmed in by the table and a concrete post. The gunman fired into the crowd, he said.