SPOKANE (AP) — The FBI has arrested a suspect in a case involving the discovery of a pair of letters containing the deadly poison ricin and says investigators are working “around the clock” to address any remaining risks.
Matthew Ryan Buquet, 37, appeared in federal court in Spokane after the FBI said agents arrested him Wednesday afternoon. He pleaded not guilty to mailing a threatening communication.
The short, balding Buquet wore dark-tinted glasses and was shackled in court. He gave brief “yes” and “no” answers to questions from U.S. Magistrate Judge Cynthia Imbrogno.
The U.S. attorney’s office for Eastern Washington had no comment on whether additional charges might be sought.