A suburban Chicago woman stabbed her 7-year-old son 100 times then turned the knife on a 5-year-old girl who witnessed the attack, killing both children as they begged for their lives, a prosecutor said Thursday. Elzbieta Plackowska, 40, told investigators she stabbed the children and slashed their throats Tuesday night at a Naperville home because she was angry that her truck driver husband was often away, DuPage County State’s Attorney Robert Berlin said.
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