Elzbieta Plackowska is arraigned on murder charges at the DuPage County Courthouse Wednesday, Nov. 21, 2012. | M. Spencer Green-AP Pool Photo
Elzbieta Plackowska is arraigned on murder charges at the DuPage County Courthouse Wednesday, Nov. 21, 2012. | M. Spencer Green-AP Pool Photo
Elzbieta Plackowska is arraigned on murder charges at the DuPage County Courthouse Wednesday, Nov. 21, 2012. | M. Spencer Green-AP Pool Photo
Elzbieta Plackowska, Mike Mara, Robert Kleeman
Elzbieta Plackowska, Sean Maroney
Elzbieta Plackowska, Sean Maroney
Elzbieta Plackowska
With cameras rolling for the first time in a DuPage County courtroom, Naperville babysitter Elzbieta Plackowska formally pleaded not guilty Wednesday to murdering two young children. Her arraignment lasted less than three minutes but still made history by being the first criminal proceeding in the …