Matthew Ryan Buquet pleads not guilty in Spokane, Wash., ricin letters

May 22, 2013 at 8:23 PM

SPOKANE, Wash., May 22 (UPI) -- A 37-year-old man arrested for mailing letters in Spokane, Wash., containing the deadly poison ricin pleaded not guilty in a federal court Wednesday.

Matthew Ryan Buquet appeared in U.S. District Court in Spokane after his Wednesday afternoon arrest, KHQ-TV, Spokane, reported.

The letters were postmarked last week in Spokane and addressed to a federal building and the post office in downtown Spokane. They were intercepted by the U.S. Postal Service, and no one was hurt, the TV station said.

Buquet could face 10 years in prison if convicted of mailing a threatening communication.

A bail hearing was set for Tuesday.

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