Ricin Suspect Charged With Threatening President's LifePaul Kevin Curtis, suspected of sending poison-laced letters to Obama, charged with threatening the life of the president.
Suspect Arrested Over Obama Ricin LetterAuthorities have arrested a suspect after a letter addressed to President Barack Obama tested positive for ricin.
Ricin Found in Letter Addressed to ObamaA letter addressed to U.S. President Barack Obama tests positive for ricin, in a drama over poisoned mail.
Deadly Poison Found in Letter Intended for U.S. SenatorFederal authorities intercepted a letter bound for the Washington office of U.S. Senator Roger Wicker that contained ricin.