Arizona authorities are searching for a second person who may have been involved in Saturday's shooting of Rep. Gabrielle Giffords. According to the Los Angeles Times, the individual is considered a 
"person of interest" by police officials.
Pima County Sheriff's Department released a photo of the man in question. It shows the man near Giffords' accused shooter, 22-year-old Jared Lee Loughner, at a Tucson, Ariz., store.
"We want to know if the person of interest is associated with" the suspect, Pima County Deputy Jason Ogan told the Times. "We released the photo to see if anyone knows him."
Giffords was among 13 people shot Saturday at an event in Tucson. Six people were killed, including a 9-year-old girl.
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