A U.S. Marshal shot and killed defendant in a federal courthouse in Salt Lake City on Monday. Siale Angilau, an alleged member of the Tongan Crips gang, was on trial accused of shooting two deputy U.S. marshals in August 2007. Angilau was killed by the Marshal after he ran toward a witness in a “aggressive, threatening manner” armed with a pen or pencil, said the FBI's assistant special agent in charge. A witness in the courtroom said the Marshal fired eight times and fired again after the defendant had fallen.