Second Man Not Involved in Arizona Shootings

TUCSON - Arizona authorities say a second man has been cleared of any involvement in an attempted assassination of U.S. Rep. Gabrielle Giffords in Tucson.

Pima County Sheriff's Deputy Jason Ogan said Sunday that the man was a cab driver who drove the gunman to the grocery store outside of which the shooting occurred.

Special Section: Tragedy in Tucson

Ogan says the man went into the store because the gunman apparently hadn't paid his fare.

Authorities had been seeking the man as a suspected accomplice because he was captured on security cameras near the gunman and at the scene Saturday.

Ogan says the cab driver "came by, and we talked to him and we determined he was not involved."

Pima County Sheriff Clarence Dupnik says Sunday that there is no evidence that anybody besides 22-year-old suspect Jared Loughner was involved.