The Lindsay Clancy Case: Postpartum Psychosis, the Insanity Defense, Media Attention, and What a Hung Jury Really Means
The Lindsay Clancy case ended not in a verdict but in a deadlock. After roughly five weeks of testimony in Plymouth County, Massachusetts, and several days of deliberation, the judge had no choice but to declare a mistrial. The case is a window into three of the hardest subjects in criminal defense: the insanity defense, the pressures of a high-profile criminal trial, and what really happens when a single holdout juror will not move.
The Insanity Defense, or What Massachusetts Calls Lack of Criminal Responsibility
Most people picture the insanity defense as a claim that the defendant did not know right from wrong. The real standard is broader than that, and Massachusetts does not even use the word “insanity.” There, the question is framed as lack of criminal responsibility. New York frames the same question in nearly identical language, calling it lack of criminal responsibility by reason of mental disease or defect under New York Penal Law Section 40.15. The decisive difference is the burden of proof. In New York, the insanity defense is an affirmative defense, so the defendant must prove it by a preponderance of the evidence. That is a lower bar than beyond a reasonable doubt, but it puts the weight on the defense, the opposite of the Massachusetts approach described below. Had the Clancy case been tried in New York, that single difference could have reshaped the entire dynamic of the trial.
In plain terms, the defense asks whether, because of a mental disease or defect, the person lacked substantial capacity either to appreciate the wrongfulness of the conduct or to control it. The word “or” matters: a defendant who knew at some level that an act was wrong may still lack criminal responsibility if the illness destroyed the capacity to control the behavior in that very moment. And “substantial capacity” does not mean no understanding at all; it asks whether that capacity was substantially impaired.
This is where postpartum psychosis enters the picture. It is a severe psychiatric condition that can follow childbirth, involving delusions, hallucinations, and a profound break from reality, and it is different in kind from the more familiar postpartum depression. In a criminal case, the argument is that the condition, not a rational choice, drove the conduct.
Massachusetts is unusual in one important respect. Once the issue is properly raised, the prosecution must prove the defendant’s sanity beyond a reasonable doubt, the same demanding standard that applies to every other element of the case. That allocation of the burden can make an enormous difference at trial, and it is one reason the Clancy jury’s inability to agree is legally significant rather than merely dramatic.
It is also worth correcting a persistent misconception. A finding of lack of criminal responsibility is not a walk-free outcome. A defendant found not criminally responsible is typically committed to a secure state psychiatric facility, subject to periodic review, for as long as the person is found to require it, potentially for many years or indefinitely, and sometimes longer than a criminal sentence would have lasted.
Even so, the defense is rarely raised and harder still to win. Juries are asked to accept that a person who did something terrible is not blameworthy, and that request is hardest in cases involving the death of children, where grief and the instinct that someone must be held accountable pull against the medical evidence. Winning requires credible expert testimony, a documented history consistent with the illness, and a jury willing to follow the legal standard rather than its own understandable emotion.
Media Attention and the Reality of a High-Profile Criminal Trial
Every defendant is entitled to a fair trial before an impartial jury. In a high-profile criminal trial, that guarantee collides with saturation coverage. By the time jury selection begins, much of the community has already read about the case, formed an opinion, and argued about it online.
Courts have tools for managing that problem, nonperfect. The most important is careful jury selection: through questioning prospective jurors, the court and the lawyers try to identify who has been exposed to coverage, who has formed a fixed opinion, and who can set outside information aside and decide on the evidence. Judges also instruct jurors not to read coverage, discuss the case, or search for information, and in rare cases, juries are sequestered or the trial is moved to another county. Courts can also limit what lawyers and witnesses say publicly while the case is pending.
What courts cannot do is control the conversation itself. The press has a constitutional right to report on criminal proceedings, and that right coexists uneasily with the defendant’s right to a fair trial. Modern cases add a complication: social media does not merely report; algorithms can organize and amplify tailored content. Sympathy campaigns, online communities, and fundraising can build a narrative around a defendant long before opening statements. That cuts both ways, generating public understanding of a mental-health defense while also hardening opinion and making an unbiased jury harder to find.
Holdout Jurors, Hung Juries, and What a Mistrial Actually Decides
In a criminal case, a verdict must be unanimous. Every juror must agree to convict, and every juror must agree to acquit. That rule gives each individual juror real power.
A holdout juror is one who will not join the rest, whether it is one against eleven or a closer split. When the jury reports that it cannot agree, the judge does not immediately end the trial. The court will typically give supplemental instructions encouraging the jurors to keep deliberating and listen to one another, while reminding them that no juror should surrender a conscientious view simply to produce a verdict. The system wants verdicts, but not verdicts extracted by pressure.
If the deadlock persists, the judge declares a mistrial and the jury is discharged. This is the point most often misunderstood. A hung jury is not an acquittal. Nothing has been decided. The charges remain pending, and the prosecution is generally free to try the case again before a new jury. The constitutional protection against double jeopardy ordinarily does not bar a retrial after a genuine deadlock because the first trial never produced a resolution on the merits.
Practically, though, a hung jury changes the landscape. Both sides learn which arguments failed and how the jury divided, then weigh the cost of another lengthy trial, the strength of the evidence a second time, and the wishes of the people most affected. Sometimes the case is retried, sometimes resolved, sometimes dropped.
Where the Case Stands and Why It Matters
The Clancy matter is now in that in-between space. The defense has asked the court to find her not guilty following the mistrial, and prosecutors are deciding whether to put the case before a second jury. Whatever happens next, the case has already shown how the criminal justice system handles severe mental illness: imperfectly, publicly, and with enormous weight placed on twelve ordinary people.
For anyone following the case, the takeaways are worth holding onto. An insanity defense is a narrow, difficult, and heavily litigated claim, not an easy exit. Publicity shapes trials in ways the rules can only partly contain. And a hung jury settles nothing except that the fight is not over.
If you or a family member is facing criminal charges, particularly where mental illness, psychiatric history, or a possible mental-health defense is part of the picture, these issues are far too consequential to navigate alone. The Law Offices of Jason Goldman represents clients in criminal matters in New York and is available to discuss your situation confidentially. Contact our office to arrange a consultation.