The murder trial for Lindsay Clancy kicked off Monday morning with opening statements in a Massachusetts courtroom. The case has drawn widespread attention due to the horrific allegations.
Clancy, a mother from Duxbury, is accused of killing her three children: Cora, 5, Dawson, 3, and 8-month-old Callan.
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Prosecutors say she used elastic workout bands to strangle them in her home before attempting suicide.
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She faces three counts of first-degree murder.
The defense is expected to argue that Clancy was suffering from postpartum psychosis at the time of the killings, making her not criminally responsible.
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The trial is expected to last several weeks, with testimony from medical experts and family members.
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Opening statements set the stage for a contentious legal battle over the mother's mental state.