A suspect has been arrested over the mailing of letters laced with the deadly poison ricin to President Obama and Senator Roger Wicker (R-MS), NBC News reports:
The suspect was identified as Kenneth Curtis of Tupelo, Miss., federal officials told NBC News.
Both letters carried an identical closing statement, according to an FBI bulletin obtained by NBC News on Wednesday.
According to the FBI bulletin, both letters, postmarked April 8, 2013 out of Memphis, Tenn., included an identical phrase, "to see a wrong and not expose it, is to become a silent partner to its continuance."
In addition, both letters are signed: "I am KC and I approve this message."