Feds arrest suspect in ricin-positive letters sent to Obama, senator
Federal agents on Wednesday arrested a suspect in the mailing of letters to President Barack Obama and a U.S. senator that initially tested positive for the poison ricin. The suspect was identified as Kenneth Curtis of Tupelo, Miss., federal officials told NBC News.
Both letters carried an identical closing statement, according to an FBI bulletin obtained by NBC News on Wednesday. According to the FBI bulletin, both letters, postmarked April 8, 2013 out of Memphis, Tenn., included an identical phrase, "to see a wrong and not expose it, is to become a silent partner to its continuance."
In addition, both letters are signed: "I am KC and I approve this message." The letter to Obama was intercepted at an off-site White House mail facility and was being tested further, the FBI said. A federal law enforcement official said that the letter was “very similar” to one addressed to Sen. Roger Wicker, R-Miss.
Two federal officials said late Wednesday that an initial laboratory test on the material in the letters was inconclusive. The test shows some level of ricin, they said, but the potency is uncertain. They cannot tell whether the material is actually harmful or not. So more tests have been ordered.
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