Woman To Admit To Sending Obama Ricin-Laced Letters

Expected to plead guilty, deal caps possible prison sentence to 18 years

A Texas woman is expected to plead guilty to sending ricin-laced letters to President Barack Obama and New York Mayor Mike Bloomberg.

Shannon Guess Richardson has a federal court appearance scheduled Tuesday in Texarkana, Texas. She's expected to plead guilty under a deal that caps any prison sentence at 18 years.

Her attorney, Tonda Curry, said Richardson was ready to admit her role in sending toxic letters to Obama, Bloomberg and the head of Bloomberg's pro-gun control group.