The former nurse sobbed, put her head in her hands and was taken from the courtroom as graphic testimony was presented in the case involving Cora, Dawson and baby Callan. But behind the emotional courtroom scenes, prosecutors and her defence are fighting over one crucial question

Lindsay Clancy Breaks Down in Court as Graphic Evidence About Her Children Is Revealed

Lindsay Clancy sits in court with her attorney Kevin Redinngton during her murder trial Wednesday, Aug. 19, 2026, in Plymouth, Mass. (Amanda Sabga/The Boston Herald via AP, Pool)

Lindsay Clancy is on trial for the deaths of her three children in 2023 (Picture: Amanda Sabga/The Boston Herald via AP, Pool)

Lindsay Clancy became visibly overwhelmed in court as prosecutors presented graphic medical evidence concerning the deaths of her three young children.

Clancy, 36, is facing three counts of first-degree murder over the deaths of five-year-old Cora, three-year-old Dawson and eight-month-old Callan at the family’s home in Duxbury, Massachusetts, in January 2023.

Prosecutors allege that Clancy deliberately killed the children using fitness bands. Her defence has pleaded not guilty to the murder charges, arguing that she was suffering from postpartum psychosis and was taking numerous powerful medications while struggling with severe mental health problems.

Clancy does not dispute that she killed her children. Her lawyers are instead challenging whether she should be held criminally responsible for the deaths.

The former nurse is now paralysed and uses a wheelchair after attempting to take her own life following the killings.

COURTROOM INTERRUPTED TWICE AS CLANCY BECAME DISTRAUGHT

During Wednesday’s proceedings at Plymouth County Superior Court, Clancy struggled to cope as medical testimony described the injuries suffered by her children.

Dr Renee Stonebridge, from the Massachusetts Office of the Chief Medical Examiner, was testifying about the children’s injuries when Clancy appeared to begin hyperventilating.

She was seen making gulping sounds as she listened to the evidence.

The judge subsequently ordered a 15-minute recess.

Clancy’s defence attorney, Kevin Reddington, stood beside her during the break, placing an arm around her shoulder as she leaned towards him. At times, she was seen holding his hand.

When proceedings resumed, Judge William Sullivan reminded jurors that their verdict must be based on the evidence rather than their emotional reactions to what they heard.

He told them that they must separate their feelings from the factual value of the testimony and that the verdict could not be based on sympathy, anger, passion or prejudice.

“I CAN’T DO THIS”

Lindsay Clancy listens to medical testimony from doctors who treated her children during her murder trial at Plymouth Superior Court, in Plymouth, Massachusetts, U.S., August 3, 2026. Greg Derr/Pool via REUTERSPatrick Clancy, the father of Cora, Dawson and Callan Clancy, looks on from the stand during Lindsay Clancy's murder trial at Plymouth Superior Court, in Plymouth, Massachusetts, U.S., July 29, 2026. David L. Ryan/Pool via REUTERSSusan Clancy, the former mother in law of Lindsay Clancy, during testimony at Lindsay Clancy's murder trial, at the Plymouth Superior Court, in Plymouth, Massachusetts, August 18, 2026. Jonathan Wiggs/Pool via REUTERS

Prosecutors later called Dr Barbara Olson, who described injuries suffered by Cora and Dawson.

According to the testimony, Cora had injuries involving her neck, arm and leg, while Dawson died from asphyxia.

As the evidence continued, Clancy lowered her head onto the desk and began sobbing.

She eventually cried out: “I can’t do this.”

The judge immediately ordered another break.

Prosecutors Jennifer Sprague and Shanan Buckingham were seen turning towards one another as the proceedings were halted, while nurses comforted Clancy and escorted her from the courtroom.

The trial resumed again later, with jurors visibly emotional as images of the children were displayed. One juror was seen wiping away tears.

WHAT HAPPENED BEFORE THE CHILDREN DIED?

15450549 Lindsay Clancy social media - photos show Lindsay, her husband and their 3 children. Surviving child is pixelated. TO GO WITH: 11677093 Two children, aged five and three, are found dead and in Massachusetts home and eight-month-old baby is treated for injuries in hospital - as cops investigate woman as suspect after she jumped out of window when officers arrivedLindsay Clancy waits for the judge to call a prospective jury member into court in her murder trial where she is charged in the 2023 killing of her three children, Wednesday, July 22, 2026, in Plymouth Superior Court in Plymouth, Mass. (Greg Derr/The Patriot Ledger via AP, Pool)

Prosecutors have argued that Clancy deliberately arranged for her husband, Patrick Clancy, to leave the house on the day of the killings.

According to the prosecution’s case, she asked him to collect takeaway food and visit a pharmacy, giving her time alone with the children.

Patrick has since filed a motion seeking restrictions on the release of the children’s autopsy photographs and audio from the 911 call he made after discovering what had happened.

He previously testified about the deterioration of Clancy’s mental health after the birth of Callan.

He told the court that her condition worsened months after giving birth, with insomnia becoming a significant problem. She sought professional help for anxiety in 2022 and was prescribed medication.

Her defence has said she was prescribed more than a dozen medications between September 2022 and January 2023.

Patrick testified that she experienced adverse effects and spoke about suicidal thoughts, hallucinations and delusions following the birth of their youngest child.

She also underwent several hospital stays for specialised postpartum treatment, including psychiatric treatment shortly before the children died.

HER DEFENCE CENTRES ON POSTPARTUM PSYCHOSIS

Clancy’s legal team maintains that she was experiencing postpartum psychosis when the killings occurred and therefore should not be considered criminally responsible.

Postpartum psychosis is a rare but severe mental health condition that can involve hallucinations, delusions, extreme mood changes, confusion and severe disturbances in behaviour.

Her former mother-in-law, Susan Clancy, previously testified that Lindsay had been “begging for help” in the period before the deaths.

She described Clancy as a loving and nurturing mother and said she had become increasingly unwell.

Patrick also recalled that, remarkably, Clancy appeared unusually happy on the day of the killings.

He told the court that she seemed to be having “one of her best days.”

TWO POSSIBLE OUTCOMES

The case ultimately hinges on whether Clancy is found legally responsible for the deaths of her three children.

If convicted of murder, she faces life imprisonment without parole.

If she is found not guilty because she lacked criminal responsibility due to her mental state, she would instead be committed to a state mental health facility.

For now, the trial continues, with the courtroom hearing increasingly emotional testimony about the final hours of Cora, Dawson and Callan — while Clancy’s lawyers continue to argue that what happened cannot be separated from the severe psychiatric crisis they say she was experiencing at the time.