A car belonging to Paul Kevin Curtis, right, is towed from his Corinth, Miss., residence on April 19, 2013.

Ricin Suspect Released After No Evidence Found

Reid says 'alleged ricin incident' happened Tuesday, when Miss. suspect was in jail.

A car belonging to Paul Kevin Curtis, right, is towed from his Corinth, Miss., residence on April 19, 2013.
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Paul Kevin Curtis, 45, the Mississippi man arrested last Wednesday for allegedly mailing envelopes containing the poison ricin to President Barack Obama and U.S. Sen. Roger Wicker, R-Miss., was released from jail Tuesday.

The reason for Curtis's release is not immediately clear. On Tuesday afternoon Senate Majority Leader Harry Reid, D-Nev., provided a possible hint by saying there had been another "alleged ricin incident" at the Joint Base Anacostia-Bolling in Washington, D.C., the Washington Post reports.

There will be a press conference about the case hosted by investigators and defense attorneys around 6 p.m. EDT, Curtis attorney Christi McCoy told The Associated Press.

"I can tell you he is with his family," McCoy told the AP, without providing more details.

[RELATED: What Is Ricin?]

Before his release a Tuesday preliminary hearing was cancelled, the AP reports, 90 minutes after it was scheduled to begin. There was no immediate government explanation, but the U.S. Marshal's Service confirmed the release.

Court documents show the charges against Curtis were not dropped Tuesday, but the preliminary hearing was indefinitely postponed, Reuters reports.

Federal agents wearing hazardous material suits and breathing apparatus inspect the home of Paul Kevin Curtis in Corinth, Miss., April 19, 2013. (Rogelio V. Solis/AP)

Investigators found no evidence of ricin - or ricin ingredients - at Curtis's home or in his car. FBI Agent Brandon Grant testified Monday, "There was no apparent ricin, castor beans or any material there that could be used for the manufacturing, like a blender or something."

A search of the suspect's computer also revealed no research about how to make the poison.

[READ: Ricin Scare Closes Senate Offices]

Wicker, whose ricin-laced letter was intercepted at a facility outside of Washington, D.C., once hired Curtis to entertain at a party.

"He's an Elvis impersonator. He entertained at a party that my wife and I helped give for a young couple that was getting married," Wicker told reporters Thursday, Politico reports. "He was quite entertaining,"

A Wicker spokesperson did not respond to a request for comment on Curtis's release. In addition to Wicker and Obama, another poison-laced letter was sent to Lee County, Miss., Judge Sadie Holland. Each letter had a Memphis, Tenn. postmark.

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