Arizona shooting suspect Jared Loughner photographed himself posing with a 9mm handgun while wearing a red G-string, a law enforcement source said Saturday.

It's not clear when the photo was taken, but it was among those on a roll of 35 mm film that Loughner dropped off at a Walgreen's store in the hours before the shooting rampage that took six lives and left 13 others wounded, including U.S. Rep. Gabrielle Giffords.

The photo, which has not been made public, shows Loughner posing with the handgun covering his groin, according to the source.

The insanity defense will be mighty appealing at this point, I suspect.