FBI Believes Spokane Man Arrested for Ricin Letters Sent More - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

FBI Believes Spokane Man Arrested for Ricin-Laced Letters Sent More Letters

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SPOKANE, Wash. -- The FBI believes a Spokane man arrested for sending ricin laced letters may have sent more toxic letters.

On May 22, the FBI arrested 38-year-old Matthew Ryan Buquet for allegedly sending a ricin laced letter to a Federal District Court Judge in Spokane and the W. Riverside Post Office in Spokane.

Now, the FBI believes Buquet sent ricin letters to the President of the United States, the Central Intelligence Agency, and the Fairchild Air Force Base near Spokane.

The letter sent to the CIA has not been found, it's believed to still be in circulation.

Subsequent analysis by the FBI at the National Bioforensic Analysis Center indicated the substance in the letters sent to the President of the United States, the Federal District Court Judge, and the Spokane Post Office contained active ricin toxin.

The contents of the Fairchild letter continue to undergo testing at the NBFAC.

The four envelopes in the possession of law enforcement officials were postmarked in Spokane on May 13, 2013. Each addressee was handwritten in red ink.

The fifth letter, with a handwritten address of "Central Intelligence Agency" in McLean, Virginia, was probably also postmarked on May 13, 2013 and penned in red ink.

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