University Medical Center nurses, who didn't want to be identified, visit a makeshift memorial for U.S. Rep. Gabrielle Giffords and the other victims of the Jan. 8 mass shooting. President Barack Obama attended, the "Together We Thrive: Tucson and America" later the same day. Many struggle to understand the lenient attitudes toward guns in the Grand Canyon State, after the shooting Jan. 8 that killed six people and wounded 13, including Giffords. Jared Loughner, the 22-year-old man accused of committing the crimes with a Glock 9 mm with an extended magazine, has been deemed mentally unfit to stand trial.