The baby sitter charged with stabbing two children to death in Naperville has undergone a psychological evaluation, authorities said Friday.
Elzbieta Plackowska was recently interviewed by a psychologist hired by prosecutors, DuPage County State's Attorney Bob Berlin said.
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"We hope to have (a final assessment) by the end of October," he told Judge Robert Kleeman in court.
Prosecutors can request psychological screening of a defendant when they have reason to believe insanity might be raised as a defense. Plackowska's lawyer also can seek an independent exam.
The 41-year-old Naperville woman is accused of repeatedly stabbing Olivia Dworakowski, 5, and her own son, Justin Plackowski, 7, in October 2012. Police said she killed them while baby-sitting at the younger child's home.
Plackowska remains jailed without bond and has pleaded not guilty. Her next court date is Nov. 8.