2. Live blog: Hearing underway in Arizona shootings
Update at 3:11 p.m. ET: "Does the medication... interfere" with ability to make choice of entering guilty plea? Judge asks Pietz. She responds that medication helps Loughner make choices.
Update at 3:07 p.m.: Pietz again concludes that Loughner is competent. Defense attorney Judy Clark says she has no questions for Pietz. Judge Burns asking Pietz some questions.
Update at 2:59 pm ET: "My concern is someone will harm him" if he is placed in a prison's general population, Pietz says. But she says he does understand the proceedings, and that he understands he must spend the rest of his life in prison.