Pamela Smart, the New Hampshire school employee who was sentenced to life after her teenage lover killed her husband, claims in a lawsuit that she was wrongly put in solitary confinement for 90 days.
Smart was a media coordinator at Hampton's Winnacunnet High School when she seduced a 16-year-old boy in 1990. He claimed she threatened to break up with him if he didn't kill her husband; she has denied planning the murder.
In a lawsuit amended this week, Smart says she was wrongly punished after a plastic utensil used to slice cheesecake was found in her cell in Bedford Hills, New York.
A spokeswoman for the New York attorney general's office, which is representing prison officials, had no immediate comment.
Smart's case inspired the novel and movie "To Die For."