In January 2023, Lindsay Clancy, a Massachusetts mother, killed her three children—Cora, 5, Dawson, 3, and baby Callan, 8 months old. She then attempted suicide by jumping from a window, surviving but suffering paralysis.
Her defence argues that she was suffering from severe postpartum psychosis, along with other serious mental health issues.
Lindsay Clancy has claimed that she heard a male voice commanding her to “kill the children” so that she could then kill herself. Her defence argues that this was a command hallucination caused by severe postpartum psychosis.
But the prosecution’s experts have strongly challenged this explanation.
Forensic psychologist Dr Kirk Heilbrun testified that he did not believe Clancy was suffering from acute psychosis at the time of the killings.
One of the most striking aspects of her claim, according to his testimony, was the alleged pattern of the voice: she said she had never heard it before, experienced it during the approximately 18 minutes in which the children were killed, and then never heard it again afterwards.
Heilbrun described this as a very unusual pattern for such a hallucination.
Her husband, Patrick Clancy, also reportedly testified about inconsistencies in statements she made about the events and her mental state.
Infact, before the killing, Lindsay sent her husband out for errands.
Prosecutors argue that Lindsay Clancy knew exactly what she was doing when she killed her three children, Cora, Dawson and baby Callan, in January 2023.
According to the prosecution, the sequence of events and the actions surrounding the killings point towards planning rather than an impulsive act caused by psychosis. They have challenged the defence’s claim that Clancy was so severely mentally ill that she could not understand the nature or wrongfulness of her actions.
Prosecutors have sought to show that Clancy was capable of functioning, making decisions and carrying out actions in an organised manner. They argue that the evidence does not support the conclusion that she was legally insane when she killed her children.
The prosecution’s final psychiatric witness, Dr Gregory Saathoff, also challenged the voice claim and pointed to the unusual fact that the alleged hallucination suddenly disappeared after the crime.
He testified that Clancy understood right from wrong and retained criminal responsibility despite her mental illness.
The prosecution is not arguing that Lindsay Clancy had no mental health problems.
But their argument is that mental illness alone does not automatically remove criminal responsibility.
As of August 27, 2026, the trial has reached its final stage, with closing arguments beginning and the jury set to decide one of the most difficult questions in the case: Was this the act of a person who should be held criminally responsible for murder, or of someone so severely mentally ill that she lacked criminal responsibility under the law?
Whatever the verdict, one fact must never be forgotten: three children are dead.
Postpartum psychiatric conditions must be identified and treated urgently. At the same time, discussions around such cases must not become selective based on the gender of the accused.
If a father suffering from depression, psychosis or another mental illness killed his children, would society, the media and the public discuss his mental health with the same intensity and empathy?
Justice must examine the evidence, the law and the accused’s mental state objectively—not public sympathy, gender stereotypes or social media narratives.
