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FBI locates fifth letter in ricin case

The FBI says investigators have located a fifth letter sent from Spokane in connection with a ricin investigation.

Workers at a Spokane post office discovered the letter Saturday after it was returned as undeliverable, FBI Senior Agent Frank Harrill said. It had been addressed to the Central Intelligence Agency.

Harrill said the letter is similar in appearance to four other letters sent from Spokane last month that contained the deadly poison. Those were addressed to President Barack Obama, a federal judge, a Spokane post office and the nearby Fairchild Air Force Base.

Matthew Ryan Buquet, of Spokane, faces a one-count grand jury indictment in the case.