April 17, 2013 ABC News
Authorities have arrested a Mississippi man believed responsible for letters apparently tainted with the poison ricin that were sent to President Obama and government offices, including that of Sen. Roger Wicker, R-Miss.
The FBI identified the man as Paul Kevin Curtis of Corinth, Miss.
He was arrested at his home at approximately 5:15 CT, the FBI said in a written statement, adding he was "believed to be responsible for the mailings of the three letters sent through the U.S. Postal Inspection Service which contained a granular substance that preliminarily tested positive for ricin. The letters were addressed to a U.S. senator, the White House and a Mississippi justice official."
The Associated Press reported Curtis' age as 45. It added that Corinth, Miss., is near the Tennessee state line about 100 miles east of Memphis, Tenn.
At least one letter in the case was postmarked from Memphis.
The letter addressed to President Obama that field-tested positive for the poison ricin included the message, "To see a wrong and not expose it is to become a silent partner to its continuance," according to a source familiar with an investigation of the incident.
"I am KC and I approve this message," the letter read.