A court filing says charges have been dropped against a Mississippi man accused of sending ricin-laced letters to President Barack Obama and others. 
 
 Federal agents wearing hazardous material suits and breathing apparatus inspect the home and possessions in the West Hills Subdivision house of Paul Kevin Curtis in Corinth, Miss., Friday, April 19, 2013.... (Associated Press) 
 
 Jack Curtis, brother of Paul Kevin Curtis, speaks outside of federal court in Oxford, Miss. on Monday, April 22, 2013. Paul Kevin Curtis is in custody under the suspicion of sending letters which tested... (Associated Press) 
 
 The one-sentence document was filed Tuesday, hours after Paul Kevin Curtis was released from custody. The document says the ongoing investigation has revealed new but unspecified information. 
 
 An FBI agent had testified in court that no evidence of ricin was found at Curtis's home. 
 
 Meanwhile, authorities searched Tuesday at the home of another Mississippi man in connection with the case. 
 
 THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below. 
 
 The Mississippi man charged with sending poisoned letters to President Barack Obama and others was released from jail Tuesday on bond, while FBI agents returned to another man's house where they'd previously searched in connection with the case. 
 
 Everett Dutschke (DUHST'-kee) said in a phone interview with The Associated Press that the FBI was at his Tupelo home Tuesday for a search related to the mailing of poisoned letters to Obama, U.S. Senator Roger Wicker of Mississippi and a state judge. Dutschke said his house was also searched last week. 
 
 In Washington, a suspicious letter containing what authorities say may be ricin was found Tuesday in a mail-sorting facility for the Defense Intelligence Agency. It wasn't clear if it was connected to the other letters. 
 
 Dutschke has maintained his innocence and says he doesn't know anything about the ingredients for ricin. He said agents asked him about suspect Paul Kevin Curtis, whether Dutschke would take a lie detector test and if he had ever bought castor beans, which can be used to make the potent poison. 
 
 "I'm a patriotic American. I don't have any grudges against anybody. I did not send the letters," said Dutschke, who hasn't been arrested or charged. 
 
 Outside his house, numerous law enforcement officers from several agencies were seen along with a mobile crime lab. 
 
 Earlier Tuesday, Curtis was released from custody without an immediate explanation from authorities. Later, his attorney Hal Neilson said that Curtis was released on bond and that charges haven't yet been dropped against him. He said conditions of the bond are sealed by the court. Defense attorneys say a news conference is scheduled for later in the afternoon. 
 
 An FBI agent had testified in court this week that a search of Curtis' home turned up no ricin or evidence it was being made there. The third day of a preliminary and detention hearing was cancelled on Tuesday without officials explaining the change. 
 
 Jeff Woodfin, chief deputy with the U.S. Marshals Service in Oxford, Miss., said he doesn't know if there were any conditions on Curtis's release. 
 
 Through his lawyers, Curtis has denied involvement in the letters. 
 
 "The searches are concluded, not one single shred of evidence was found to indicate Kevin could have done this," Defense lawyer Christi McCoy told reporters after a hearing Monday. 
 
 At that hearing, FBI Agent Brandon Grant testified that searches last week of Curtis' vehicle and house in Corinth, Miss., found no ricin, ingredients for the poison, or devices used to make it. A search of Curtis' computers found no evidence he researched making ricin. Authorities produced no other physical evidence at the hearings tying Curtis to the letters. 
 
 Curtis was arrested last Wednesday at his house in Corinth, Miss., and charged with sending the ricin-laced letters, the first of which was found April 15. 
 
 Grant testified Friday that authorities tried to track down the sender of the letters by using a list of Wicker's constituents with the initials KC, the same initials in the letters. Grant said the list was whittled from thousands to about 100 when investigators isolated the ones who lived in an area that would have a Memphis, Tenn., postmark, which includes many places in north Mississippi. He said Wicker's staff recognized Curtis as someone who had written the senator before. 
 
 All the envelopes and stamps were self-adhesive, Grant said Monday, meaning they won't yield DNA evidence. He said thus far the envelopes and letters haven't yielded any fingerprints. 
 
 McCoy said in court that someone may have framed Curtis. She questioned why Curtis would have signed the letters "I am KC and I approve this message," a phrase he had used on his Facebook page. 
 
 On Tuesday, people in hazmat suits were seen going in and out of Dutschke's house on a quiet block in Tupelo. Investigators from the FBI, U.S. Marshals Service and U.S. Capitol Police were seen outside the house. Dutschke said he counted at least 30 law enforcement agents. 
 
 "They really asked me about Kevin for most of the day and then they asked me if I would take a lie detector test. I said my attorney would be very angry. I did sign a consent form for the search, which is probably why they have not shown me any kind of warrant," he said. 
 
 Dutschke said his attorney wasn't with him and he didn't know whether he was going to be arrested. 
 
 Dutschke said that he knows Curtis but that the two had a falling out. Dutschke said the last contact they had was in 2010 when Dutschke threatened to sue Curtis for saying he was a member of Mensa, a membership group for people with high IQs. 
 
 ___ 
 
 Wagster Pettus reported from Jackson. Associated Press writers Holbrook Mohr in Jackson and Pete Yost in Washington contributed to this report. ||||| Story highlights "I'm overwhelmed. I'm extremely happy to be vindicated," he says 
 
 New information has come to light, U.S. attorney says 
 
 Source says investigators are looking at someone trying to frame him 
 
 Curtis had been accused of mailing the poison to Obama, a U.S. senator and a judge 
 
 Thrust into the headlines last week, accused of sending ricin-tainted letters to President Barack Obama and two other officials, Paul Kevin Curtis is a free man again. 
 
 "It's like a train has been lifted off my shoulders," Curtis told CNN's "Piers Morgan Live" on Tuesday. "I'm overwhelmed. I'm extremely happy to be vindicated and out and able to see my kids." 
 
 Charges were dropped and "new information" became available, U.S. Attorney Felicia Adams said. 
 
 Authorities are investigating whether someone may have tried to falsely implicate the Elvis impersonator from Corinth, Mississippi, a law enforcement source said on condition of anonymity. 
 
 Curtis was arrested April 17 and charged with sending a threat to the president last week after letters containing the poison triggered security scares around Washington. 
 
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 Curtis said his arrest was surreal. 
 
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 "It looked like a scene out of a movie," said Curtis, adding that there were hooded men with machine guns. "I was just overwhelmed. I just kept asking, 'what is ricin? What did I do?'" 
 
 Curtis' attorney, Christi McCoy, said her client has been framed by someone who used several phrases Curtis likes to use on social media. 
 
 The letters read, in part: "To see a wrong and not expose it, is to become a silent partner to its continuance." 
 
 They were signed "I am KC and I approve this message," a source told CNN. 
 
 They each had a Memphis, Tennessee, postmark and no return address. 
 
 McCoy said she was sure someone else was to blame. 
 
 "I do believe that someone who was familiar and is familiar with Kevin just simply took his personal information and did this to him," McCoy said. "It is absolutely horrific that someone would do this." 
 
 Curtis said it was an eye-opener for him. 
 
 "I think now, how many people are thrown in jail because of circumstantial evidence and someone can frame you that easily," he said. 
 
 Curtis had been accused of sending letters containing "a suspicious granular substance" to Obama; Sen. Roger Wicker, R-Mississippi; and Sadie Holland, a Justice Court judge in Lee County, Mississippi. 
 
 The FBI said the substance tested positive for ricin, a toxin derived from castor beans that has no known antidote. 
 
 No illnesses had been found as a result of exposure to the toxin.
– Attorneys for the Elvis impersonator accused of sending toxic letters to President Obama and others have said from the start that their client was framed. Now it's looking like they might be right: Authorities today dismissed charges against Paul Kevin Curtis and released him from prison, reports CNN. A one-sentence court filing said new information had become available without providing details, reports AP. Yesterday, authorities revealed that they had found no evidence of ricin at Curtis' apartment. So what now? The Clarion-Ledger reports that federal authorities today searched the home of an another Mississippi man identified as J. Everett Dutschke. The newspaper describes the 41-year-old as a "disgraced former politician" who is currently the subject of a child molestation investigation. He also has had run-ins, at least of the online variety, with Curtis. “I don’t know anything about this," he says. "Where are the allegations coming from? Who made the allegations? The defense attorney for the accused."