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Justin Plackowska, 7 & Olivia Dworakowski, 6, October 30, 2012, Naperville, DuPage County, Illinois

Updated: Dec 25, 2022

7-year-old Justin Plackowska and a 5-year-old girl, Olivia Dworakowski have been murdered on the 800 block of Quin Court, by Justin's biological mother, Elzbieta Plackowska, 40, in Naperville, Illinois Olivia was a child often babysat by the killer. Both of the dogs were also killed.

The children were found after Olivia's mother requested a well being check at the residence. Olivia's body was found on the bed, and Justin's was found on the floor beside it. He had stab wounds on his head, face, neck and back. Both appeared to have had their throats slit.

Elzbieta initially told investigators different stories. First, she blamed the killings on a stalker who got into her home, then later said both the children had evil inside them, and she was fighting the devil in the house. She then told Investigators she was angry with her husband, a truck driver, and said by killing her son, she would hurt her husband the way she was hurt in the relationship. Justin and Olivia were simply jumping on the bed when she attacked them both, making both of them kneel and begin praying, telling her son that he was going to heaven.

Elzbieta was charged with two counts of first degree murder after stabbing Justin over 100 times, and Olivia over 50 times, to their deaths.


Plackowska was found guilty after a two week bench trial, convicted and entered into prison at the Logan Correctional Center as of January 2, 2018, and is ineligible for parole. The final counts she was guilty of was 2 counts of murder, and 2 counts of aggravated cruelty to animals.

Information accumulated by:

CBS News

The Huff Post

Find a Grave

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