A Massachusetts teenager charged in the killing of a 47-year-old woman in Maine has been sentenced to 28 years in prison.
Seventeen-year-old William Smith, of Ashland, Massachusetts, was one of three teens charged in the April 2018 killing of Kimberly Mironovas in Litchfield.
A judge who imposed the sentence Monday under a plea agreement said previously that Smith was "the prime mover" in the plot. He was 15 at the time.
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Law enforcement officials said Smith and the victim's son, Lukas Mironovas, strangled the woman to the point of unconsciousness before Lukas Mironovas stabbed her in the neck. Lukas Mironovas will be sentenced next month.
Court documents indicate that before her death Kimberly Mironovas confronted the teens about missing marijuana and refused to drive Smith and another teen to Massachusetts.