Shannon Guess Richardson, a Texas actress who sent ricin-laced letters to officials including President Obama and former New York Mayor Michael Bloomberg last year, was sentenced to 18 years in prison on Wednesday.
Richardson, who had minor acting roles in The Walking Dead and The Blind Side, was given the maximum sentence under her plea deal on a federal charge of possessing and producing a biological toxin, the Associated Press reported.
She was also ordered to pay restitution of about $367,000.