Attacks such as the one that left Judge Esther Salas' son dead are rare, but a report shows "threats and inappropriate comments" against federal court workers increased fourfold since 2015.
The U.S. Marshals Service says Blane Barksdale, 56, and wife Susan, 59, "overpowered and kidnapped" three people, including two security guards, on Aug. 26 during extradition from New York to Arizona.