UNDATED (CBS) -- A new development in the case of letters laced with ricin. They were sent to President Obama and a senator. Charges against a man arrested in the case have now been dropped. Investigators are zeroing in on someone else.
Less than 24 hours ago, Paul Kevin Curtis stood accused of sending poisoned letters to President Obama and U.S. senator Roger Wicker.
Wednesday morning, the Elvis impersonator from Mississippi is a free man. Paul Kevin Curtis says, "I would like to move on with my life and find out what normal is again"
Curtis was released after investigators said searches of his home and car turned up no traces of ricin or the ingredients needed to make it. He says, "When you've been charged with something-you've never heard of ricin or whatever, I thought they said rice, so I said, I don't even eat rice."
Officials arrested Curtis last week after discovering he'd written Senator Wicker before, and once performed for him at a party. There was also the threatening message in both letters signed, "I am KC and I approve this message."
Curtis says it somebody may have tried to set him up. He says, "The person that did this knew that I have always signed for 15 years, 'This is KC and I approved this video,' message."
Tuesday, agents searched the home of James Dutschke. He says he had nothing to do with the ricin letters.
But Curtis claims Dutschke has had a vendetta against him for years. It remains unclear if there's any connection.
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