The affidavit had been sealed since it was filed Friday in U.S. District Court in Oxford. It also said that on evening of Dec. 31, 2012, someone using his "computer downloaded a publication, Standard Operating Procedure for Ricin, which describes safe handling and storage methods for ricin, and approximately two hours later, Immunochromotography Detection of Ricin in Environmental and Biological Samples, which describes a method for detecting ricin."
An expert at the National Bioforensics Analysis Center in Fort Detrick, Md., said the extraction process employed in this case appears to have been more involved than "merely grinding castor beans," the affidavit said.
A witness, who is not named in the document, told investigators that Dutschke once said years ago that he knows how to make poison that could be sent to elected officials and "whoever opened these envelopes containing the poison would die."
Judge Holland dismissed a civil suit that Dutschke filed in 2006 against the witness, who accused him of making sexual advances toward the witness' daughter, the affidavit said. In April, Dutschke pleaded not guilty in state court to two child molestation charges involving three girls younger than 16. He also was appealing a conviction on a different charge of indecent exposure. He told AP that his lawyer told him not to comment on those cases.
The lawsuit isn't Dutschke's only connection to Holland. She is part of a family that has had political skirmishes with him.
Her son, Steve Holland, a Democratic state representative, said his mother encountered Dutschke at a rally in the town of Verona in 2007, when Dutschke ran as a Republican against Steve Holland.
Holland said his mother confronted Dutschke after he made a derogatory speech about the Holland family. She demanded that he apologize, which Holland says he did.
Dutschke's MySpace page has several pictures with him and Wicker. Republicans in north Mississippi say Dutschke used to frequently show up at GOP events and mingle with people, usually finding a way to get a snapshot of himself with the headliner.
The first suspect accused by the FBI, Paul Kevin Curtis, 45, also had also had ties to Holland. Curtis was arrested on April 17 at his Corinth, Miss., home, but the charges were dropped six days later. After his arrest, Curtis said he was framed and gave investigators Dutschke's name as someone who could have sent the letters, the affidavit said.
Some of the language in the letters was similar to posts on Curtis' Facebook page and they were signed, "I am KC and I approve this message." Curtis often used a similar online signoff.
Curtis has said he knows Dutschke and they feuded over the years, but he wasn't sure what caused it.
Dutschke made a brief appearance Monday in federal court, wearing an orange jumpsuit with his hands shackled. He said little during the hearing other than answering affirmatively to the judge's questions about whether he understood the charges against him. U.S. Magistrate S. Allan Alexander set his preliminary and detention hearing to take place Thursday.
He faces up to life in prison if convicted.