After weeks of testimony and seven days of deliberations, the murder trial of Lindsay Clancy came down to one person.

Eleven jurors were reportedly prepared to find the Massachusetts mother not guilty by reason of lack of criminal responsibility in the 2023 deaths of her three young children.

One juror disagreed.

That alone would be enough to produce a hung jury. American criminal trials require unanimity, and every juror has the right to disagree with the rest of the panel.

But now several jurors are saying the problem went deeper.

Juror Nick Dargie, 25, told ABC News that he repeatedly asked the lone holdout to identify evidence or witness testimony supporting his position.

According to Dargie, the man never did.

“There wasn’t a single piece of evidence or witness testimony” that the holdout used to explain his reasoning, Dargie said.

That frustration eventually contributed to a note the jury sent to Judge William Sullivan — and ultimately to one of the most dramatic mistrials in Massachusetts in recent years.

The Question Was Never Whether Clancy Killed Her Children

Lindsay Clancy did not deny causing the deaths of her children.

On Jan. 24, 2023, prosecutors say Clancy strangled 5-year-old Cora, 3-year-old Dawson and 8-month-old Callan with exercise bands inside the family’s Duxbury home.

Her husband, Patrick Clancy, had left the house to run errands.

When he returned, he discovered a catastrophic scene.

Clancy had cut her wrists and jumped from a second-story window in an apparent suicide attempt, leaving her paralyzed from the waist down.

The central question at trial was therefore not identity.

It was criminal responsibility.

Clancy’s defense argued that she was suffering from postpartum psychosis, had been overmedicated and was unable to appreciate the wrongfulness of what she was doing.

Prosecutors presented a very different interpretation. They argued that Clancy acted deliberately and understood her actions, pointing to her behavior before and after the killings as evidence of planning and awareness.

The jury had to decide which legal interpretation the evidence supported.

Eventually, 11 jurors reportedly came down on one side.

“Show Us the Evidence”

Dargie told ABC News he entered the trial without significant prior knowledge of the case.

During deliberations, he said, he tried to understand why the holdout juror viewed the evidence differently.

That disagreement itself was not the problem.

Dargie said there were “several times” when he asked the man to identify evidence or witness testimony that supported his position.

According to Dargie, the juror could not do it.

Dargie stressed that there would have been nothing improper about someone reaching the opposite conclusion after weighing the evidence.

“That would be a hung jury,” he said. “That is our justice system.”

His concern was that the holdout allegedly would not explain how the trial evidence led him there.

Other jurors have independently described similar frustration.

The Foreperson Says the Holdout Admitted He Had Reasonable Doubt

Jury foreperson Roni Carlson told NBC10 Boston that one particular moment made her believe the panel had finally reached a unanimous decision.

According to Carlson, the holdout acknowledged that he had reasonable doubt.

She began filling out the verdict forms.

Then he stopped her.

Although he had acknowledged doubt, Carlson recalled him saying he still would not vote to find Clancy not guilty by reason of lack of criminal responsibility.

That distinction became enormously important.

The jury later sent Judge Sullivan a note saying a juror had acknowledged reasonable doubt but was refusing to apply the court’s instructions.

Defense attorney Kevin Reddington immediately sought to have the juror removed.

He argued that the issue was no longer simply an honest disagreement over evidence but a refusal to follow the law as Sullivan had instructed it.

The judge declined to remove him.

Other Jurors Say Medical Evidence Was Discussed — and Rejected

Another juror told NBC10 that the holdout appeared unable to move beyond the brutality of the children’s deaths.

She said he had “the hardest time getting off the fact that Lindsay viciously killed her children.”

That emotional reaction would hardly be surprising.

The evidence involved the deaths of three very young children at the hands of their mother.

But the jury’s legal task required something more specific: deciding whether Clancy could be held criminally responsible given her mental condition.

Jurors said they attempted to answer the holdout’s questions using evidence from the trial.

At one point, a question about medication allegedly arose.

According to one juror, the group returned to toxicology evidence and testimony from medical professionals.

She said the holdout still rejected the information.

Another juror described him as unwilling to engage meaningfully with the rest of the group.

Those accounts come from fellow jurors and represent their perceptions of what happened inside the deliberation room.

The holdout has not publicly given his own detailed account.

The Judge Could Not Simply Replace a Juror for Disagreeing

The legal problem for Judge Sullivan was difficult.

A judge cannot remove a juror merely because 11 other people believe that juror is wrong.

Doing so whenever a panel reaches 11–1 would fundamentally undermine the requirement of unanimity.

A holdout juror has every right to resist pressure from the majority if he genuinely believes the evidence requires another verdict.

Reddington himself acknowledged that principle afterward.

He said he respected the juror’s right to hold a different opinion.

His objection, he explained, was to the allegation that the man had reasonable doubt but would not apply the legal standard given by the judge.

Sullivan ultimately refused the defense request to remove the juror.

The jury was sent back to continue deliberating.

It remained deadlocked.

On Sept. 4, after the panel said for a third time that it could not reach a unanimous decision, Sullivan declared a mistrial.

An 11–1 Split Is Not an Acquittal

The reported vote has created understandable confusion.

Eleven jurors favoring Clancy does not mean she was found not guilty.

There was no verdict.

Likewise, the mistrial does not amount to a conviction.

Clancy remains charged with first-degree murder and other offenses.

Prosecutors retain the option of trying her again.

A second jury could evaluate the same evidence differently.

But the comments from Dargie and other jurors have created a new issue surrounding the case: whether another lengthy trial is justified when the first jury reportedly came so close to acquitting Clancy on criminal-responsibility grounds.

Clancy’s Lawyer Is Now Asking the Judge to End the Case

That question has moved beyond television interviews.

On Sept. 10, Reddington asked Judge Sullivan to find Clancy not guilty by reason of lack of criminal responsibility rather than force her through a second trial.

The defense argues that prosecutors failed to produce sufficient evidence proving that Clancy understood the wrongfulness of her actions despite her severe mental illness.

Sullivan is expected to consider the request at a Sept. 29 hearing.

Prosecutors have not yet announced whether they intend to retry Clancy if the motion fails.

The stakes are enormous.

A first-degree murder conviction could mean life imprisonment without parole.

A finding of not guilty by reason of lack of criminal responsibility would not simply send Clancy home without oversight; she could remain committed to a psychiatric facility and face continuing judicial review.

One Juror Changed the Entire Outcome

The mistrial illustrates both the power and difficulty of the American jury system.

One juror can stop 11 others.

That is not necessarily a flaw.

The unanimity requirement exists precisely so that a defendant cannot be convicted — or acquitted in a case requiring unanimous resolution — simply because the majority overwhelms a dissenter.

But the system also assumes jurors are evaluating evidence and applying the judge’s instructions.

That is why Dargie’s account has attracted so much attention.

He is not merely saying another juror disagreed with him.

He is saying he repeatedly tried to understand why — and never received an answer grounded in the evidence they had spent weeks hearing.

Whether that characterization is fair cannot be determined solely from interviews with the other jurors.

The holdout has not publicly explained his reasoning.

But the practical result is undeniable.

Eleven jurors were reportedly ready to resolve one of Massachusetts’ most closely watched murder cases.

One was not.

And because of that single vote, after weeks of testimony and seven days inside the jury room, Lindsay Clancy’s case ended exactly where it began:

without a final answer.