A video camera and a still camera photographer were allowed to record the arraignment -- a first in the Chicago area, the Chicago Tribune reported.
Plackowska, 40, of Naperville has been held without bond in the DuPage County Jail since Oct. 30 when she was arrested on 10 counts of first-degree murder in the stabbing death of her son Justin, 7, allegedly because she was unhappy in her relationship with her husband, and Olivia Dworakowski, 5, for whom she was babysitting, the newspaper said.
Prosecutors contend Olivia was stabbed to death because she witnessed the killing of Justin.
Trader Joe's: Car crashes into Long Island store, injuring 11
Reindeer recovered after escaping from Santa during lighting ceremony