Karen Waller, 50, was arrested Tuesday at her home in Irvington, N.J., by the FBI Joint Terrorism Task Force, U.S. Attorney Paul J. Fishman said in a statement. A federal criminal complaint alleges Waller sent letters threatening bodily harm to the U.S. Supreme Court, the town hall in Woodbridge Township, the police department in Millburn Township, Rutgers University and a private insurance office.
Waller threatened to kill people in the letters, Fishman said.
She was charged with mailing letters threatening bodily harm. The charge carries a maximum 10-year prison sentence and a fine of up to $250,000.