An Elvis impersonator is accused of mailing letters possibly contaminated with the deadly toxin ricin to President Obama and a U.S. senator.
FBI agents arrested Paul Kevin Curtis in Mississippi Wednesday.
MORE from HLN affiliate WMC: Suspect arrested for Ricin letters
Neither of the letters made it to their intended recipients. Both were stopped at a screening center.
A source tells CNN the letters read in part:
"To see a wrong and not expose it, is to become a silent partner to its continuance."
They were signed:
"I am KC and I approve this message."