* Warning: This story contains graphic details and discusses suicide, maternal mental illness and the deaths of children
According to the defence, Lindsay Clancy was a dedicated and loving mother who was let down by the medical profession, prescribed multiple psychiatric drugs, and, according to them, in a state of postpartum psychosis, killed her three children before attempting suicide, an attempt that left her paralysed and in a wheelchair for life.
The prosecution, however, argues that Clancy, 36, a former labour-and-delivery nurse, while mentally ill, she still understood what she was doing when she killed her three children: Cora, 5, Dawson, 3, and Callan, 8 months.
Now, the murder trial of the Massachusetts mother has ended in a mistrial after one juror remained opposed to the other 11, leaving unresolved the question at the heart of one of the most closely watched US criminal cases of the year: was Lindsay Clancy criminally responsible for her children's deaths?
Judge William Sullivan declared a mistrial on Friday after the jury failed to reach a unanimous verdict following almost 40 hours of deliberations. The jury was reportedly split 11-1, with the majority apparently leaning towards finding Clancy not criminally responsible because of mental illness.
That does not mean the jury acquitted her. No verdict was reached.
The case now moves into uncertain territory, with prosecutors able to consider whether to retry Clancy and two separate civil lawsuits continuing to raise questions about the medical treatment she received before the deaths.
The one juror who brought the trial to a halt
The final days of deliberations became almost as extraordinary as the trial itself. The case which was livestreamed on TikTok and YouTube, and also televised, attracted substantial online attention, including in South Africa as well.
The jury had spent more than a week considering the evidence when it became clear that one juror was not reaching the same conclusion as the other 11.
Clancy's lawyer, Kevin Reddington, 75. accused the holdout juror of refusing to properly apply the court's instructions on reasonable doubt.
The defence asked Judge Sullivan to remove the juror and replace them with an alternate.
The judge refused.
The court then gave the jury further instructions to continue deliberating. When the jury remained unable to reach a unanimous decision, Sullivan declared a mistrial.
A last-minute attempt by the defence to have the juror replaced was also rejected by the Massachusetts Supreme Judicial Court.
The identity and private reasoning of the juror have not been established publicly, and the defence's allegation about the juror should therefore not be treated as a finding of misconduct.
What is clear is that the disagreement was enough to prevent a verdict.
Reddington has argued that the 11 other jurors had reached a position favourable to his client. But the reported 11-1 split should not be described as an 11-juror acquittal because the jury never formally reached such a verdict.
What was the jury being asked to decide?
The central issue was not whether Clancy killed her children. Her defence has not disputed that she caused the deaths. Her legal battle was over her mental state and whether she should be held criminally responsible. Clancy however did not make a written or recorded confession presented at trial. (Updated Sept 6, 2026)
Clancy's defence said she was suffering from postpartum psychosis, a rare and severe psychiatric condition that can cause hallucinations, delusions, confusion and a profound break with reality.
She said she heard a voice ordering her to kill her children.
Prosecutors acknowledged that Clancy had significant mental-health problems but argued that she nevertheless understood her actions and deliberately carried them out.
The trial lasted about six weeks and heard evidence from more than 80 witnesses.
It became a case not only about three children's deaths, but about how postpartum mental illness is recognised, treated and understood, and where the law should draw the line between severe mental illness and criminal responsibility.
What is postpartum psychosis?
Postpartum psychosis is a rare psychiatric emergency that can develop after childbirth.
According to experts who spoke to AFP, it affects roughly one to two women in every 1,000 births.
Sally Wilson, national training co-ordinator at UK charity Action on Postpartum Psychosis, told AFP that the outcome in the Clancy case was an extraordinarily distressing and rare consequence of the illness.
Adrienne Griffen, executive director of the Maternal Mental Health Leadership Alliance, told AFP that the case also raises questions about whether women experiencing severe postpartum mental illness are receiving appropriate help.
Kelly Woods, a Chicago lawyer and advocate, told AFP that postpartum psychosis remains poorly understood and expressed hope that the medical community would learn from the case.
Juliet Williams, a UCLA professor of gender studies, told AFP that the case also exposed the enormous cultural expectations placed on mothers and the idea of the “good mother”.
Those observations do not establish what happened to Clancy medically or determine whether she was legally responsible. Those were questions for the evidence and the jury.
Worth noting is that postpartum psychosis is currently not recognised as a standalone diagnosis in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5-TR), sparking an active debate among international medical experts who want it classified as a distinct condition.
Instead, clinicians typically diagnose the underlying condition and apply a “peripartum onset” specifier when the criteria are met.
A 2025 international consensus group led by Dr Veerle Bergink of the Icahn School of Medicine at Mount Sinai argued that postpartum psychosis should be recognised as a distinct diagnosis within the bipolar disorder classification, citing its specific onset, symptoms and risk profile. That proposal has not yet become the accepted diagnostic standard.
In South Africa
In South Africa, cases like Lindsay Clancy’s raise questions about how postpartum psychosis is recognised and treated within our own healthcare system.
South Africa’s fifth edition of the National Integrated Maternal and Perinatal Care Guidelines, released in October 2024, incorporates maternal mental health into the country’s pregnancy-care framework. Its guidance on postnatal mental health includes postnatal psychosis as a severe psychiatric emergency, with recommendations for assessment, management and referral to appropriate specialist care.
The challenge is whether that guidance can be consistently translated into care in a health system where access to specialist perinatal mental-health services remains limited. Research on South African healthcare has identified barriers to the identification and treatment of perinatal mental-health conditions, particularly within public health services.
A 2022 study estimated that untreated maternal depression and anxiety cost South Africa R49 billion over the lifetime of each annual group of mothers and their infants, while estimating a return of R4.70 for every R1 invested in treating perinatal depression.
The women in pink
Outside the Clancy trial courthouse, the case developed a following of its own.
Hundreds of women gathered in Plymouth during the trial, many dressed in pink and carrying signs bearing messages including “She Needed Help”, “Peace For Lindsay” and “Believe”.
The women became known in coverage as the “Pink Ladies” and said their presence was intended to draw attention to postpartum mental health and the experiences of women who seek help after childbirth.
At one rally in August, about 300 women and a small number of men gathered outside the courthouse for a silent vigil before proceedings began, according to The Associated Press.
For some supporters, the case was not simply about whether Clancy should be held responsible for the deaths of her children. They said it represented wider concerns about whether women experiencing serious mental-health problems are listened to and treated appropriately.
Renee Kimball, who helped organise the rally, urged supporters to trust Clancy's defence lawyer, Kevin Reddington.
Other women spoke about their own experiences of postpartum mental-health problems and fears that women can be dismissed when they ask for help.
“Women are being dismissed, neglected and ignored when we speak up,” April Vincent, who attended the rally, said. “We're scared because nobody takes us seriously.”
The demonstrations also reflected the extraordinary public interest surrounding the case. The trial was livestreamed and generated intense discussion online, with supporters following developments in court and debating the competing accounts of Clancy's mental state.
But the public response was far from unanimous.
Alongside supporters were people who objected to the focus on Clancy and argued that attention should remain on the three children who died.
That divide mirrors the central tension in the courtroom: whether the case should primarily be understood through the lens of a devastating mental-health crisis or through the criminal responsibility of a mother who killed her children.
The mistrial means the legal system has not resolved that question.
Social media had its own thoughts and were also split on what they thought.
The treatment Clancy received before the killings
The question of Clancy's medical treatment has also become the subject of separate civil litigation.
This is important because the civil cases are not the criminal case and the allegations made in them have not been proved.
Patrick Clancy, Lindsay's ex-husband (they divorced after the murder) and the father of the children, filed a wrongful-death lawsuit in January 2026 against mental-health providers who treated Lindsay before the killings.
According to the lawsuit, reported by The Boston Globe and NBC Boston, it alleges that the mental-health treatment Lindsay received was negligent and that providers failed to properly recognise the deterioration in her condition.
It also alleges that the combination of medications she was prescribed and the way her treatment was monitored contributed to the deterioration that preceded the children's deaths.
Those are allegations contained in a civil complaint, not findings by a court that the doctors or healthcare organisations caused the deaths.
The lawsuit also describes a period in which Lindsay repeatedly sought help for anxiety, insomnia, suicidal thoughts and worsening mental-health symptoms.
According to the complaint, she received treatment from a number of providers and was prescribed multiple psychiatric medications.
The lawsuit alleges that her condition continued to deteriorate despite those interventions.
Again, those accounts are allegations made by Patrick Clancy in civil litigation and should not be presented as established medical fact.
Lindsay Clancy has filed her own lawsuit
There is another important and separate civil case.
Lindsay Clancy herself has also sued healthcare providers over the treatment she received before the deaths.
Her lawsuit raises allegations about the diagnosis and treatment of her mental-health condition and the medications she was prescribed.
According to reporting by The Boston Globe, that case includes a broader group of healthcare defendants, including McLean Hospital and Women & Infants Hospital of Rhode Island.
The lawsuit alleges that her condition was not properly diagnosed and that her psychiatric treatment was inadequately co-ordinated.
It also raises claims concerning the use of multiple psychiatric medications and whether her treatment contributed to the psychotic state described by her defence.
Those claims are disputed allegations in a civil lawsuit. They have not been judicially established.
The existence of the two lawsuits is significant because they put medical treatment under scrutiny independently of the criminal question.
One asks whether healthcare providers should be held financially responsible for the deaths.
The other seeks damages on Lindsay Clancy's behalf in relation to the treatment she received.
Neither lawsuit establishes that the healthcare providers caused the tragedy.
The Andrea Yates comparison
The Clancy case has also drawn comparisons with Andrea Yates, another American mother whose children were killed in a case involving severe mental illness.
Yates drowned her five children in Texas in 2001.
She was initially convicted of murder and sentenced to life imprisonment. After that conviction was overturned, she was retried in 2006 and found not guilty by reason of insanity.
She was subsequently committed to a psychiatric hospital.
The comparison has been raised because both cases involve mothers who killed their children and whose mental state became central to the criminal proceedings.
But the legal and factual circumstances of the two cases are different.
The comparison nevertheless illustrates the unusual position that can arise when a court accepts that a defendant committed the physical acts but finds that severe mental illness prevented criminal responsibility.
The South African echo
For South Africans, there is another reason the case feels familiar.
In 2021, Lauren Dickason, a South African doctor trained at the University of Cape Town, killed her three young daughters in Timaru, New Zealand. Dickason was later found not guilty of murder by reason of insanity and committed to psychiatric care.
The two cases are not legally connected and the medical evidence in each was different. But both have prompted discussion about postpartum mental illness, the recognition of psychiatric emergencies and the difficult boundary between illness and criminal responsibility.
That makes Clancy's case more than an American courtroom drama for South African readers. It touches a question that has already confronted this country through Dickason's case: what happens when a severe maternal psychiatric illness is recognised only after something irreversible has happened?
What happens after a mistrial?
The mistrial does not mean Clancy is acquitted. The criminal charges remain unresolved.
Prosecutors now have several possible paths.
A retrial
The most obvious option is for prosecutors to seek a new trial with a new jury. A second jury would hear the case and decide whether Clancy is criminally responsible. The mistrial itself does not determine the outcome of any future trial.
A negotiated resolution
The prosecution and defence could also discuss a negotiated resolution.That could involve an agreed disposition rather than taking the case through another lengthy trial, although what might be acceptable to either side is not known.
No retrial
Prosecutors could ultimately decide not to pursue another trial. That would leave the criminal case without a conviction, but it would not amount to the jury finding Clancy not criminally responsible. The decision will involve legal, evidentiary and practical considerations.
A further hearing is scheduled for September 29, when the next stage of the case is expected to be addressed.
The civil cases continue separately
Whatever happens with the criminal prosecution, the two medical-treatment lawsuits are separate proceedings.
They could continue to examine what treatment Clancy received, what warning signs were present and whether the healthcare providers named in the complaints met the required standard of care.
The civil courts will have to determine whether the allegations are proved.
If Clancy is convicted, or found not criminally responsible
If Clancy were convicted of murder in a future trial, she could face life imprisonment.
If she were found not criminally responsible because of mental illness, the outcome would be different. She could be committed to psychiatric care under Massachusetts law rather than simply being released.
A finding of not criminally responsible because of mental illness is not the same as an ordinary acquittal in which a jury concludes that the prosecution failed to prove that the defendant committed the crime.
It reflects a different legal conclusion about responsibility and mental state.
A case that has become bigger than one courtroom
The mistrial leaves the legal question unresolved, but the debate surrounding the case is unlikely to disappear.
The trial has forced attention onto postpartum psychosis, maternal mental health and the difficulty of identifying women whose psychiatric conditions are deteriorating rapidly after childbirth.
It has also raised questions about how the healthcare system responds when a patient repeatedly reports distress, suicidal thoughts or frightening changes in mental state.
After weeks of evidence, days of deliberation and an extraordinary dispute over one juror, the case has reached an ending that is not an ending at all. There is no verdict.
The mistrial has therefore left almost every major question surrounding the case open.
Was Clancy criminally responsible for the deaths of her children? Did severe postpartum psychosis prevent her from understanding what she was doing? Did the medical treatment she received before the killings meet the required standard? Could earlier intervention have changed what happened?
The jury did not answer those questions. Neither did the mistrial. - AFP and Vivian Warby
This story deals with suicide, maternal mental illness and the deaths of children. If you or someone you know is struggling, the South African Depression and Anxiety Group (SADAG) operates a 24-hour helpline on 0800 456 789.