A U.S. federal grand jury has indicted a Mississippi man for allegedly sending poisoned letters to President Barack Obama, a U.S. senator, and a state judge.
The man, James Dutschke, faces life in prison if he is convicted.
Charges include possessing a biological agent for use as a weapon and threatening the president of the United States. Dutschke says he is innocent.
He is accused of sending ricin-laced letters to Obama and U.S. Sen. Roger Wicker of Mississippi. The letters were intercepted at mail-handling facilities, and the president and senator were never in any danger.
Police arrested Dutschke in April after arresting and later releasing another man whom Dutschke allegedly tried to frame.