SALT LAKE CITY -- The FBI says a defendant has died after being shot by a U.S. marshal during an attack on a witness during a trial in federal court in Salt Lake City.
The FBI said 25-year-old Siale Angilau died Monday at a hospital.
The agency says Angilau was shot in the chest as he rushed the witness with a pen in an aggressive, threatening manner. Authorities said Angilau, who had not been restrained in the courtroom, was shot several times in front of a jury that had been selected on Friday.
Angilau was one of 17 people named in a 29-count racketeering indictment filed in 2010 accusing gang members of assault, conspiracy, robbery and weapons offenses.
"During the trial this morning the defendant went after, engaged the witness stand, and when he engaged the witness at the witness stand, he was shot by the U.S. Marshals Service," Dressen said.
"From what I understand, the defendant may have grabbed a pen or a pencil and charged the witness stand at that time," he said.
Federal authorities confirmed that a U.S. marshal assigned to the court opened fire on Angilau. No one else was injured.
Angilau, 25, was on trial on racketeering charges in the courtroom of U.S. District Court Judge Tena Campbell. Along with a string of robberies and assaults of local store clerks, the 6-foot-3, 260-pound Angilau also was accused of shooting two U.S. marshals in 2007 and brandishing a firearm.
The incident prompted Campbell to declare a mistrial. She said in a brief order that U.S. marshals had continued to hold Siale Angilau at gunpoint near the jury box while jurors were still in the courtroom.
"The court has met with the jury and and observed that most of the jury members are visibly shaken and upset by this episode,'' the judge wrote. "The court finds that this occurrence in the courtroom would so prejudice Mr. Angilau as to deprive him of a fair trial."
Angilau's lawyer, Michael Langford, was not immediately available for comment. His office said the lawyer was "a bit shaken up but okay.''
The federal courthouse, which opened last week with upgraded security, was placed on lockdown.
The Angilau case was the last in a series of Tongan Crip-related trials that have been going on since 2007.
In 2011, a jury convicted seven members of the gang for robbery, assault and use of firearms during crimes of violence committed in support of an ongoing criminal organization, the Deseret News reports.
The newspaper says some jurors at the time feared retaliation from gang members and wanted assurances from the judge that they would be safe. A note from a juror asking for such assurances nearly caused a mistrial in the case, the News reports.
Contributing: Donna Leinwand Leger; Associated Press