Jared Lee Loughner, accused of the shootings on Jan. 8, pled not guilty to all charges yesterday during his first court appearance in Tucson since the shooting that left six dead and 13 wounded.

Loughner faces a 49-count federal indictment that includes the attempted assassination of Rep. Gabrielle Giffords, attempting to kill two of her aides, and the murders of federal judge John Roll and Gabe Zimmerman, one of Giffords’ staffers.

Loughner also faces four other murder charges for the deaths of Dorothy Morris, Phyllis Schneck, Dorwan Stoddard and 9-year-old Christina-Taylor Green.

Federal prosecutors have indicated that Loughner could face the death penalty if convicted.

“”This indictment involves potential death-penalty charges, and Department rules require us to pursue a deliberate and thorough process,”” said U.S. Attorney Dennis K. Burke in a press release. “”That process is ongoing, and we will continue to work diligently to see that justice is done.””

Loughner could also face additional charges brought on from the Pima County Attorney’s office after the conclusion of the federal trial, which Pima County Attorney Barbara LaWall has confirmed is her intention. A hearing to determine his competency to stand trial has been set for May 25.  

Loughner is being held at a maximum-security prison outside of Tucson.