Poison-Letter Suspect Probe Finds No Evidence of Ricin

Paul Kevin Curtis was accused of mailing poisoned letters to President Obama, U.S. senator.
1:34 | 04/23/13

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Transcript for Poison-Letter Suspect Probe Finds No Evidence of Ricin
After two days of testimony -- Kevin -- is still has not been charged with any crime. FBI agents say they've got their man that they had yet to present any physical proof. Over the weekend agents searched Curtis home and car along with his ex wife's house they found no Trace of rice -- or anything used to make Bryson. Curtis computers were also disease investigators have not found any data pertaining to the -- I gotta say I feel like that. They Kevin is going to be vindicated. Of all of these charges and then we can move forward to get my brother the hill. That. -- and -- the evidence is lacking and it is not there. Any -- here for information over the Internet or Facebook and you get millions of people -- can access and and that's what they have. My question to the government is very very -- really -- -- proceed on this I mean there's just not thing here -- in this space but in. Does it that is not only that you're denying him and his liberty but the longer they stay his black ice targeted on having -- -- The less likely that the trip arbitrator. We'll ever be tried and convicted. Federal agents have traced all the letters that they were all mailed from Tupelo and FBI agent testified they contain the prudence form of rice in. Say it was basically roundup castor beans. That it didn't process any lender or coffee -- the judge is expected to make a ruling tomorrow on whether Curtis will be charged and held for this crime. In Oxford Shelley -- ABC 24 news.

This transcript has been automatically generated and may not be 100% accurate.

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