Cops: Ill. mom stabbed son 100 times, girl 50 times

AP Photo/DuPage County Sheriff's Department

Elzbieta Plackowska, 40, of Naperville, Ill., is charged with first-degree murder in the deaths of her 7-year-old son and a 5-year-old girl. Prosecutors contend that on Tuesday, Oct. 30, 2012, Plackowska stabbed her son because she was angry with her husband and killed the 5-year-old girl she was babysitting because she witnessed the attack. Plakowska was ordered held without bond at a hearing on Nov. 1.

Justin Plackowska of Naperville quickly found success in Tae Kwon Do, his instructor said

A makeshift memorial is seen outside a home in Naperville, Ill., on Thursday, Nov. 1, 2012, where two children were found stabbed to death on Tuesday, Oct. 30.

Naperville Unit School District 203 Superintendent Dan Bridges discusses the double murders of the two students, who attended Brookdale and Scott elementary schools

Gina Blizek, whose son is classmate of one of the murder victims, discusses how she is going to help her son deal with the tragedy

Police cars are seen outside a home in Naperville, Ill., on Thursday, Nov. 1, 2012, where two children were founded stabbed to death on Tuesday, Oct. 30.

Police exit a home in Naperville, Ill., on Wednesday, Oct. 31, 2012, where two children were found dead

A home in Naperville, Ill., where two children were found dead on Oct. 30, 2012

Animal Control removes two pets who were presumably killed along with two children at a home in Naperville

A home in Naperville is where authorities found the stabbing victims, a 5-year-old girl and a 7-year-old boy

A coroner