U.S. prosecutors dropped charges against a Mississippi man accused of sending ricin-laced letters to President Barack Obama and a U.S. senator, according to a court order signed by a judge on Tuesday.
In a court order dismissing the charges, prosecutors said the "ongoing investigation has revealed new information" without providing any additional detail.
Curtis told a news conference afterward that he respected Obama and would never harm a public servant. "I love this country," he said.
The release of Curtis, 45, on bond came shortly after a judge indefinitely postponed a court hearing on his detention.
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