After not guilty plea and new motion, Loughner headed back to Tucson

Posted: Updated:

PHOENIX, Ariz. -- Not guilty was the plea from the man police say is behind the massacre in Tucson that claimed six lives and left 13 others injured, including Congresswoman Gabrielle Giffords.

Accused Tucson gunman Jared Lee Loughner sat smiling in court for 10 minutes before the judge even entered the room.

His San Diego based public defender, Judy Clarke, patted his shoulders and asked him a few questions, but Loughner didn't utter a word out loud.

Clarke entered his not-guilty plea on three federal charges, the attempted assassination of Representative Gabrielle Giffords and the attempted murders of two of her aides, Pamela Simon and Ron Barber, both of whom survived their gunshot wounds.

Murder charges for the rest of the victims are still pending.

Judge Larry Burns was also brought in from San Diego to hear the case, after all Arizona judges recused themselves-- citing their professional and personal relationships with murder victim Judge John Roll.

In a new motion, federal prosecutors asked the case to be moved to Tucson, and Loughner's defense team didn't object. 

And new evidence was brought to light.

Many have seen Loughner's now infamous YouTube and Myspace videos.  Apparently there are  dozens more.

Prosecutors have collected 45 more videos, seized from Loughner's home computer.

After the short arraignment, Loughner left court under heavy security, heading back to prison north of Phoenix.

Plans are now in the works to transfer him to a facility in Tucson.