TUCSON, Ariz. - A memorial service took place this evening in Tucson, Ariz. to mark the one-year anniversary of the attempted assassination of Rep. Gabrielle Giffords (D-Ariz.) that left 12 others shot and six of those dead, including a federal judge and a 9-year-old girl.

Thousands attended the candlelight memorial, which featured Giffords, assisted by her husband, Mark Kelly, leading those in attendance in the Pledge of Allegiance.

Officials have charged Jared Lee Loughner of plotting to kill Rep. Giffords at a "Congress in your Corner" event attended by her constituents.

Loughner remains in a prison hospital where he is being forcibly medicated in an attempt to make him fit to stand trial. He has pleaded not guilty to all 49 charges in connection with the shooting.

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