The Lindsay Clancy trial is examining whether severe mental illness affected her criminal responsibility when she killed her three children. The closely watched murder trial is underway in Plymouth Superior Court in Massachusetts.
Clancy has pleaded not guilty to murder charges in the deaths of Cora, 5, Dawson, 3, and Callan, 8 months. The children died at the family’s Duxbury home on Jan. 24, 2023.
Competing Arguments in the Lindsay Clancy Trial
Prosecutors argue that Clancy intentionally planned and carried out the killings. They allege she asked her then-husband, Patrick Clancy, to leave the home for food and medicine.
During opening statements, prosecutors described her actions as calculated. They have presented evidence about the family’s final hours together and Patrick Clancy’s return to the home.
Defense attorney Kevin Reddington does not dispute that Clancy killed the children. However, the defense argues that severe mental illness left her without criminal responsibility.
Her lawyers say she experienced postpartum psychosis and bipolar disorder. They contend that she heard a voice directing her to kill the children and herself.
Under Massachusetts law, jurors must consider whether a mental disease or defect prevented Clancy from understanding that her actions were wrong. They may also consider whether it prevented her from controlling her conduct.
Psychiatric Treatment Takes Center Stage
Recent testimony has examined the psychiatric care Clancy received before the killings. Jurors have heard from several medical professionals involved in her treatment.
Clancy sought help from multiple providers and received several psychiatric prescriptions. She also entered a psychiatric hospital weeks before the children died.
Her psychiatrist, Dr. Jennifer Tufts, testified that Clancy never reported hallucinations or a plan to harm herself or others. Tufts diagnosed her with generalized anxiety disorder and an adjustment disorder with depressed mood.
The defense questioned Tufts about her experience, virtual appointments and prescribing decisions. Tufts rejected suggestions that she provided negligent care.
Other providers testified about Clancy’s reports of hopelessness, insomnia and intrusive thoughts. One caregiver recommended a higher level of treatment after learning about persistent suicidal thoughts.
Phone Searches and Personal Notes Enter Evidence
On Aug. 13, jurors heard testimony about information recovered from Clancy’s phone. Her searches included hallucinations, psychosis, bipolar disorder, insomnia and medication side effects.
Clancy also searched for information about suicide and postpartum depression. The searches occurred during the weeks before the children’s deaths.
Prosecutors may use the digital evidence to support their argument that Clancy understood her condition and actions. The defense may point to the same searches as evidence that she recognized her worsening symptoms and sought answers.
Jurors also heard personal notes expressing anxiety about parenting decisions and her children’s development. Text messages showed Clancy and her husband discussing ordinary family responsibilities on the day of the killings.
What the Jury Must Decide
The trial is not centered on who killed the children. Instead, the central question involves Clancy’s mental condition and legal responsibility at the time.
A murder conviction could bring life imprisonment without parole. A finding of not guilty because of a lack of criminal responsibility could result in commitment to a state mental health facility.
The trial remains ongoing, and no verdict has been reached. Testimony is expected to continue examining Clancy’s medical treatment, behavior and mental condition before the deaths.
The case has renewed attention on serious postpartum psychiatric conditions and access to specialized care. Families facing a mental health crisis can call or text the 988 Suicide & Crisis Lifeline for immediate support.

