
Lindsay Clancy's daughter's preschool teacher, Susan Bertolo, noticed that the young girl was acting strangely and out of character just one day before she was killed inside her home, a court was told on Thursday.
The mother's longtime friend, Amy Bevins, also said that Clancy texted her a few days before the children were killed to say she was battling with 'dark thoughts' and was trying new drugs to help.
Clancy is accused of murdering Cora, five, Dawson, three, and Callan, eight months, using exercise bands in the basement of her Duxbury home in January 2023.
The Massachusetts mom, 35, then tried to end her own life after slashing her wrists and neck before jumping from a second-story window.
Clancy has pleaded not guilty, citing postpartum psychosis, a rare but serious medical emergency characterized by a rapid-onset psychiatric episode.
The prosecution maintains that the former nurse's actions were premeditated and deliberate. The trial continues at Plymouth County Superior Court.
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