Chilling new testimony in the trial of Massachusetts mother Lindsay Clancy revealed that she had disclosed thoughts of harming her children weeks before she strangled all three of them inside the family’s Duxbury home.
Clancy’s mother, Paula Musgrove, took the stand Monday as the defense began presenting its case following weeks of testimony from prosecutors seeking to prove the killings were deliberate and planned.
Clancy, 36, is charged with three counts of first-degree murder in the January 2023 deaths of her children, 5-year-old Cora, 3-year-old Dawson and 8-month-old Callan.
Her attorneys do not dispute that Clancy killed the children. Instead, they argue she was not criminally responsible because she was suffering from severe mental illness, including what the defense says was undiagnosed postpartum psychosis.
Musgrove testified that her daughter began showing increasingly alarming signs of mental deterioration in the months before the killings.
By December 2022, Clancy had disclosed to both her mother and her then-husband, Patrick Clancy, that she was experiencing thoughts about harming the children.
Her family has described a dramatic change in the former labor and delivery nurse beginning in the fall of 2022, including extreme anxiety, paranoia, suicidal thoughts and fears about being left alone.
Clancy repeatedly sought psychiatric help and was prescribed numerous medications as doctors attempted to treat her worsening condition.
Her defense argues that the combination of her mental illness and rapidly changing medication regimen contributed to a catastrophic psychiatric collapse.
Lindsay Clancy’s mother testified Monday that her daughter confided in December 2022, while heavily medicated, that she was having thoughts of harming her children.
Paula Musgrove told jurors her daughter seemed very nervous and said she had something to tell the family. “She… pic.twitter.com/bqgHOkUfAb
— Fox News US (@FoxUSNews) August 17, 2026
Prosecutors have painted a starkly different picture.
The state spent roughly three weeks presenting evidence intended to show that Clancy understood what she was doing and carefully created an opportunity to be alone with the children on Jan. 24, 2023.
Patrick testified that the day initially appeared relatively normal before Clancy asked him to leave the house to pick up medication and dinner.
He departed shortly after 5 p.m.
When he returned less than an hour later, the house was unusually quiet. He eventually discovered Clancy badly injured outside after she jumped from a second-story window in an apparent suicide attempt.
POLL: Do You Approve Of Secretary Of War Pete Hegseth?
Patrick then found the children in the basement with exercise bands around their necks.
Cora and Dawson were pronounced dead that night. Callan was rushed to a hospital but died three days later.
Clancy survived the fall but suffered severe spinal injuries that left her paralyzed and dependent on a wheelchair.
Digital evidence has also become a major part of the prosecution’s case.
Jurors heard testimony that Clancy searched the internet in the weeks before the killings for information about hallucinations, psychosis, suicide methods and side effects associated with psychiatric medications.
Prosecutors argue those searches and her actions on the night of the killings demonstrate awareness and planning rather than a sudden break from reality.
The defense sees the same evidence very differently, arguing that searches about hallucinations and psychosis support the claim that Clancy knew something was seriously wrong with her mental state and was desperately trying to understand what was happening to her.
Her psychiatric treatment has been under intense scrutiny throughout the trial.
Clancy had sought help from multiple mental health professionals and had briefly received inpatient psychiatric treatment before the killings. Testimony has also explored whether her care was poorly coordinated as providers prescribed and changed multiple medications.
Her attorneys contend she was suffering from postpartum psychosis and may also have had an undiagnosed bipolar disorder.
Several medical providers who treated Clancy before the killings, however, testified that they did not observe signs that she was psychotic or posed an immediate danger to her children at the time they treated her.
The prosecution rested Monday after calling nearly 70 witnesses, including Patrick, first responders, investigators and medical professionals.
Clancy’s mother, sister and a former nursing colleague were among the first witnesses called as the defense began attempting to convince jurors that the killings were the result of profound mental illness rather than calculated murder.
The stakes could hardly be higher.
If convicted of first-degree murder, Clancy faces life in prison without the possibility of parole. If jurors determine she lacked criminal responsibility because of mental illness, she could instead be committed to a psychiatric facility.
The defense is expected to continue presenting evidence about Clancy’s mental health and treatment as jurors confront the central question that has hung over the case for more than three years: whether she deliberately murdered her three children or was so severely mentally ill that she could not be held criminally responsible for what she did.
POLL: Ilhan Omar Now Claims She’s Broke – Do You Believe Her?
