Also a Federal Judge from Arizona was shot dead.<p>"Ms. Giffords, who represents Arizona’s Eighth District in the southeastern corner of the state, has been an outspoken critic of Arizona’s tough immigration law, which is focused on identifying, prosecuting and deporting illegal immigrants, and she had come under criticism for her vote in favor of the Democrats’ health care law.<p>Friends said she had received threats over the years. Judge Roll had been involved in immigration cases and had previously received death threats. "