UPDATE — MISTRIAL DECLARED IN LINDSAY CLANCY TRIAL

Friday, Sept. 4 — The Lindsay Clancy murder trial has officially ended in a mistrial after jurors failed to reach a unanimous verdict following seven days of deliberations.

Judge William Sullivan formally declared the mistrial Friday after Massachusetts' highest court denied an emergency defense effort seeking to stop the jury from being dismissed.

The jury had reported itself deadlocked for a third time. In its final note to the court, the foreperson said the panel remained unable to reach a unanimous decision and would not be able to do so.

The mistrial followed nearly 40 hours of deliberations and an extraordinary final stretch in which the jury's foreperson reported that one juror was refusing to follow the court's instructions concerning reasonable doubt.

Defense attorney Kevin Reddington sought to have that juror removed and argued that the juror's reasoning reflected possible bias against people suffering from serious mental illness. Judge Sullivan declined to remove the juror or conduct the additional inquiry sought by the defense.

When the jury again reported Friday that it could not reach a verdict, Sullivan said he believed he had no choice but to declare a mistrial. The defense then sought emergency intervention from the Massachusetts Supreme Judicial Court. That request was denied, clearing the way for Sullivan to formally end the trial.

A mistrial is not an acquittal and it is not a conviction.

Clancy remains charged in the deaths of her three children — Cora, 5, Dawson, 3, and Callan, 8 months. Both sides agree that Clancy killed the children. The trial centered on whether severe mental illness left her not criminally responsible or whether, despite her mental illness, she understood the wrongfulness of her actions.

Plymouth County District Attorney Timothy Cruz said prosecutors will not make an immediate decision about whether to try Clancy again.

The case now moves to a follow-up hearing scheduled for Sept. 29. Clancy's defense is expected to ask the judge to enter a judgment of acquittal, while prosecutors must decide whether to pursue a second trial.

For now, after a nearly six-week trial, more than 80 witnesses, hundreds of exhibits and seven days of jury deliberations, the Lindsay Clancy case remains unresolved.

— ORIGINAL ARTICLE CONTINUES BELOW —

There is no dispute over one of the most horrifying facts in the Lindsay Clancy murder trial: Clancy killed her three young children.

Her attorneys acknowledge it. Prosecutors acknowledge it. Clancy herself has admitted it.

Cora, 5, Dawson, 3, and Callan, 8 months, died after being strangled inside the family's Duxbury, Massachusetts, home in January 2023.

The question being decided at Clancy's trial is whether she was criminally responsible for those killings or whether severe mental illness left her legally insane at the time.

Yet outside the courtroom, another trial has been taking place on social media.

And in that version of the case, an increasingly vocal group of Clancy supporters — many of them women — has directed suspicion, anger and even accusations of murder toward someone who isn't on trial at all: the children's father, Patrick Clancy.

From Mental-Health Advocacy to Conspiracy Theories

There is an important distinction between believing Lindsay Clancy suffered from postpartum mental illness and claiming she didn't kill her children.

Her defense maintains that Clancy was suffering from psychosis and experienced a command hallucination when she killed Cora, Dawson and Callan.

That argument has been supported by defense experts and has resonated deeply with women who experienced postpartum depression, psychosis, intrusive thoughts or inadequate mental-health treatment themselves.

Hundreds of supporters — many dressed in pink — have gathered outside Plymouth Superior Court carrying messages including "She Needed Help" and "Peace For Lindsay.

Their argument is largely about mental illness and criminal responsibility.

But something considerably different has emerged online.

TikTok, X, Reddit and other platforms have filled with theories accusing Patrick Clancy of neglecting his wife, contributing to the deaths or, in the most extreme examples, actually killing his children and framing Lindsay.

There is no evidence presented in court supporting those allegations.

Patrick Clancy has never been identified as a suspect in his children's deaths.

Investigators used surveillance footage and phone records to corroborate that Patrick was away from the house when the children were killed. He had left at Lindsay's request to pick up medication at CVS and takeout food before returning home to a nightmare.

Nevertheless, the accusations continue.

Some Theories Have Become Extraordinary

The online speculation has moved far beyond legitimate questions about postpartum healthcare.

The Boston Globe documented one X user who claimed Patrick drugged Lindsay, pushed her from a window and strangled the children so he could eventually marry another woman.

No evidence supporting that claim has been introduced at trial.

CNN has documented online users questioning whether Lindsay committed the crimes at all despite the defense and prosecution agreeing that she did.

WIRED examined a large community of predominantly female TikTok users who have attempted to assign responsibility to Patrick — either by portraying him as a neglectful husband or by advancing theories that he actually committed the murders.

Some of the reasoning circulating online has become almost impossible to reconcile with evidence.

Reports have highlighted screenshots circulating from TikTok in which Clancy supporters reportedly invoked the couple's zodiac signs.

One comment declared that "Leos don't kill their cubs."

Another reportedly concluded that because Lindsay is a Leo and Patrick is a Gemini, "He did it."

That is how far portions of the online conversation surrounding three dead children have traveled from the evidence being presented inside a courtroom.

Patrick's Actions Have Been Put Under a Microscope

Patrick's conduct before the killings has nevertheless received legitimate scrutiny during the trial.

Defense attorney Kevin Reddington questioned him about occasions when he traveled, went skiing or attended brunch while Lindsay was struggling with her mental health.

CNN correspondent Jean Casarez noted that the questioning appeared designed to explore whether Lindsay had adequate support during a period when she was seeking psychiatric treatment.

Those are questions attorneys are entitled to ask.

They are not evidence that Patrick murdered his children.

In fact, Reddington's questioning also highlighted an important fact: Patrick had previously been away for considerably longer periods while Lindsay remained alone with the children.

If the defense wanted jurors to believe Lindsay had been secretly planning to kill them, Patrick's absence during those earlier periods could seemingly have provided an opportunity.

Instead, the defense maintains that Lindsay experienced a catastrophic psychotic break on the night the children died.

That is dramatically different from claiming Patrick committed the killings.

The Evidence the Jury Is Actually Considering

Inside the courtroom, the argument is far more serious than much of what is circulating online.

Defense psychiatrist Dr. Phillip Resnick testified that Clancy was psychotic and believed killing the children was necessary to protect them.

Prosecutors have challenged that conclusion.

Forensic psychologist Dr. Kirk Heilbrun testified this week that although Clancy suffered from mental illness, he believed she remained capable of understanding what she was doing and recognizing that it was wrong.

He concluded that she was criminally responsible.

FBI forensic psychiatrist Dr. Gregory Saathoff also questioned portions of Clancy's description of hearing a voice directing her to kill the children.

Those competing expert opinions represent the actual question jurors must answer.

Not Patrick's zodiac sign.

Not TikTok theories.

Not whether someone online believes Patrick behaved like the husband they think he should have been.

The jury must decide whether Lindsay Clancy was legally responsible for what she admittedly did.

Sympathy Is Not Evidence

Perhaps the extraordinary reaction to the Clancy case reveals something larger about how Americans view motherhood.

For some women who experienced frightening postpartum symptoms themselves, Lindsay's story may feel deeply personal.

They may recognize the exhaustion, depression, anxiety, intrusive thoughts or sense that medical professionals weren't listening.

Those experiences deserve to be taken seriously.

But empathy for women suffering from postpartum mental illness does not require abandoning the evidence surrounding the deaths of Cora, Dawson and Callan.

It also does not justify accusing their surviving father of murdering them without evidence.

Patrick returned home that evening and discovered his wife outside after she had jumped from a second-story window.

He then discovered his children.

His 911 call and reaction to finding them became evidence at trial.

He has since endured not only the deaths of all three of his children, but an internet ecosystem in which strangers dissect his movements, relationships, facial expressions, clothing and personal life searching for clues to a crime investigators say he did not commit.

Social Media Has Created a Different Courtroom

High-profile criminal cases have always attracted amateur detectives.

Social media has changed the scale.

A theory that once might have remained between a handful of people can now reach millions through TikTok, X, YouTube or Reddit before anyone asks whether the underlying claim is true.

Sensational theories generate engagement.

Engagement generates distribution.

And repetition can make speculation begin to resemble evidence.

That appears to be happening in the Clancy case.

The legitimate debate over postpartum psychosis, psychiatric treatment and criminal responsibility has increasingly become entangled with an online campaign in which some people appear determined to find another person responsible for what happened.

But the legal case remains much simpler.

Lindsay Clancy killed Cora, Dawson and Callan.

Her attorneys say she was insane when she did it.

Prosecutors say she was mentally ill but still understood her actions and should be held criminally responsible.

The jury will soon decide between those positions.

Whatever verdict they reach, it should be based upon the evidence presented in that courtroom — not the viral theory that received the most likes on TikTok.

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