The 22-year-old man accused of trying to assassinate Democratic Congresswoman Gabrielle Giffords is scheduled to be arraigned today on a number of charges including attempted assassination of a member of Congress. Giffords remains in critical condition after being shot in the head at point-blank range on Saturday while she was meeting with constituents outside a supermarket in Tucson, Arizona. Police say Jared Lee Loughner shot Giffords and then fired at the crowd, killing six and injuring 13 others. The dead included John Roll, the chief federal judge for Arizona; Gabriel Zimmerman, an aide to the congresswoman; and nine-year-old Christina Taylor Green, a third-grader who was recently elected to the student council at her elementary school. President Obama has called for a moment of silence today at 11:00 a.m. EST for the victims of Saturday’s shooting. The House of Representatives’ entire legislative agenda has been postponed for the week. Two days before the shooting, Congresswoman Giffords took to the House floor and read the First Amendment.

Rep. Giffords: “First Amendment: Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.”