Defense witnesses in the Lindsay Clancy murder trial told jurors the Massachusetts mother was desperate for help with her mental health months before she strangled her three young children, testimony that cuts to the heart of whether she was criminally responsible.
Susan Clancy, Lindsay's former mother-in-law, took the stand Tuesday at Plymouth Superior Court and described a woman unraveling in plain sight. She told the jury Lindsay had reached out in November 2022, roughly two months before the killings, reporting insomnia, loss of appetite, deep anxiety, and sadness. Susan Clancy said she watched the decline accelerate through the holiday season and into January 2023, when Cora, Dawson, and Callan were found strangled in the family's Duxbury, Massachusetts, home. All three children were under six years old.
"Lindsay was struggling. We were all very concerned," Susan Clancy told the court.
Lindsay Clancy, 36, faces three counts of first-degree murder. She does not dispute that she killed her children. Her defense rests on a plea of not guilty by reason of insanity, with her attorneys arguing she was suffering from postpartum psychosis, a severe psychiatric condition, at the time of the deaths. Prosecutors see it differently. They allege she strangled the children "deliberately and meticulously" and then attempted suicide because she had "grown tired of her life as a mother."
The competing narratives have defined the trial since opening arguments on July 27, when Patrick Clancy, Lindsay's ex-husband, spent four hours on the stand as the first of roughly 200 expected witnesses. Patrick testified that Lindsay had seemed happy on January 24, 2023, the day of the killings, and was "having one of her best days."
Susan Clancy's testimony painted a picture that the defense clearly wants the jury to hold: a loving mother overtaken by illness, not a calculating one driven by resentment. When asked whether she had ever seen Lindsay treat the children badly, Susan answered with a single word.
"No."
She described Lindsay before the decline as attentive and warm.
"She was very nurturing, very loving. She was a wonderful mother. Wonderful."
But by November 2022, Susan said, the person she knew had changed. Lindsay reached out and told her she felt unwell, unable to sleep, unable to eat, gripped by anxiety and sadness. Susan told jurors the situation grew worse through the holidays.
"She was begging for help," Susan said.
Text messages introduced as evidence reinforced the timeline. On November 30, 2022, Lindsay texted Susan Clancy expressing fear about her dependence on benzodiazepines, a class of anti-anxiety medication, and her inability to sleep without them. "I'm not okay and I'm terrified of taking meds tonight," the message read. The defense has used these messages to argue that Lindsay's psychiatric care was fragmented, with doctors failing to communicate with one another and conducting appointments over video calls rather than in person.
Paula Musgrove, Lindsay's mother, also testified Tuesday. She told the jury about her daughter's deteriorating mental state, though she said she had not been concerned about the children's safety at the time.
The court displayed a text message Lindsay sent Musgrove on October 20, 2022, more than three months before the killings:
"Mom, will you please come up and stay with me for a bit? I'm really sick. Something is wrong. I had horrible insomnia all night, and I just don't know how I am going to get through the day... It's just really scary, and I don't want to be alone."
That message, dated well before the November decline Susan Clancy described, suggests Lindsay's struggles were visible even earlier than the family initially indicated. Whether the jury reads it as evidence of a woman slipping toward psychosis or as a woman whose distress was manageable and distinct from the later killings will likely depend on which side's framing holds.
Cases involving young lives lost under tragic circumstances always force hard questions about what warning signs were missed and who bears responsibility when systems fail to intervene.
Lindsay Clancy had previously disclosed to her mother and then-husband that she had experienced thoughts of harming her children before the January 2023 killings. That disclosure, reported during the trial, raises an unavoidable question: what was done with that information, and by whom?
The prosecution rested Monday morning after three weeks of testimony. Their case portrayed Lindsay Clancy as an intentional killer who manipulated the circumstances around her, not a helpless victim of mental illness. Prosecutors argued she acted with purpose and planning, strangling each child individually.
Patrick Clancy's testimony during the prosecution's case offered one of the trial's most jarring details. He recounted a phone call from Lindsay after the killings in which she described hearing a voice.
"She said she heard a man's voice telling her if she didn't do it now she would lose her chance or something like that."
That statement cuts both ways. Prosecutors may frame it as a convenient post-hoc explanation. The defense will almost certainly treat it as direct evidence of psychosis, a break from reality severe enough to override a mother's most fundamental instinct.
The broader pattern of investigations into deaths where loved ones' accounts don't fully align with the physical evidence underscores how difficult these cases are for juries to resolve.
The jury, 12 women and six men, with six alternates, visited the Clancy family's Duxbury home on July 31 as part of a court-supervised viewing of the crime scene. They returned to Plymouth Superior Court the following week for what is now the fourth week of proceedings.
The defense's task is steep. An insanity defense requires more than showing a defendant was mentally ill. It requires showing she was so impaired that she could not understand what she was doing or that it was wrong. The family testimony, from a mother and mother-in-law who watched Lindsay deteriorate and still did not anticipate violence, may actually illustrate how difficult postpartum psychosis is to recognize, even for those closest to it.
The defense has also argued that Lindsay's psychiatric care was disjointed, with multiple doctors failing to coordinate treatment. If that argument gains traction, it shifts some of the moral weight away from Lindsay Clancy and onto the medical system that was supposed to be treating her. Whether that moral weight translates into legal weight, reasonable doubt about criminal responsibility, is the question this jury will eventually have to answer.
When systems meant to protect the vulnerable fail, the consequences often fall on those least equipped to bear them. In this case, three children paid the highest price.
No amount of testimony will bring Cora, Dawson, and Callan back. The jury's job now is to decide whether their mother was a calculating killer or a woman abandoned by the institutions that should have intervened long before January 2023. Either answer demands accountability, the only question is where it lands.
