Lindsay Clancy Mistrial: What A Sudden Defense Reversal Reveals About The Insanity Defense In New Jersey

By Gelman Law, LLC 

When a murder trial ends with eleven jurors on one side and a single juror on the other, everyone watching wants to know what happens next. In the Lindsay Clancy case in Plymouth, Massachusetts, the next chapter took a sharp turn on September 29, when her attorney asked the judge to find her not guilty outright after spending a six-week trial arguing she was legally insane. 

If you or someone you love faces a serious charge here at home, this case raises real questions about how the insanity defense in New Jersey works and why the strategy you choose early can follow you through every stage of your case.

Attorney David Gelman of Gelman Law joined Fox News to break down the hearing. His take was simple: once a defense team builds its entire case around a mental health defense, it can’t easily walk that back. That lesson matters for anyone facing a homicide or other serious charge, because the choices made before trial shape everything that comes after.

If you’re facing a serious criminal charge in South Jersey, you don’t have to face this alone. Schedule your case evaluation with Gelman Law today. You can call us at 856-861-4236 or fill out our secure online contact form any time, day or night.

Lindsay Clancy Mistrial: What Happened In The Plymouth County Courtroom?

Lindsay Clancy is charged with murder in the deaths of her three young children at the family’s home in Duxbury, Massachusetts, in January 2023. At trial, her defense argued she was not guilty by reason of insanity. After roughly 36 hours of deliberation over seven days, the jury split 11 to 1, and Judge William Sullivan declared a mistrial in early September.

At the September 29 hearing, defense attorney Kevin Reddington changed course. He argued there was no proof Clancy committed the killings, criticized the police investigation and the forensic evidence, and pointed out that she has no memory of the events and never confessed. He asked the court to enter a not guilty finding.

Prosecutors called Reddington’s argument “laughable” and maintained that the evidence supported the charges against Clancy. They also requested a gag order, arguing that Reddington’s extensive public comments, particularly those concerning the lone holdout juror, had contributed to a “carnival atmosphere” and could influence potential jurors in a future trial. The next hearing is scheduled for November 2.

Insanity Defense In New Jersey: Why Did David Gelman Say The New Argument Comes Too Late?

On air, David Gelman explained the core problem with the reversal. “If you’re going to get a not guilty by reason of insanity, you have to concede that she actually committed the crimes,” he said. The defense did exactly that for six weeks, and in his view, raising a no-proof argument now is too late. That challenge belonged before the first trial, not after it.

Fellow commentator Todd Shapiro added that everything said and shown in the first trial lives on in the transcript. If a retrial happens, prosecutors can point to the earlier record when a defense suddenly switches lanes. New Jersey courts work in a similar way. Sworn testimony and the evidence presented at a first trial don’t simply disappear, and a jury can find it hard to trust a defense that tells two different stories.

David Gelman also noted that an 11 to 1 split favoring the defense is a strong position, and he credited the defense with doing well at trial. He predicted the state may recalibrate, consider a lesser charge, or explore a plea agreement. For you, the takeaway is that a consistent, well-planned strategy often carries more weight than a dramatic last-minute pivot.

Not Guilty By Reason Of Insanity: What Does New Jersey Law Actually Require?

In New Jersey, the insanity defense comes from N.J.S.A. 2C:4-1. You are not criminally responsible if, at the time of the act, a disease of the mind left you unable to understand the nature and quality of what you were doing. The defense also applies if you understood the act but did not know it was wrong. This is often called the M’Naghten test.

The insanity defense in New Jersey is an affirmative defense. That means you, not the prosecutor, must prove it by a preponderance of the evidence. Court rules also require you to give the state advance notice before trial if you plan to raise it.

Several factors often shape whether a mental health defense holds up in court:

• Treatment history: Records from before the incident can show a documented pattern of illness
• Defense evaluations: Psychiatrists and psychologists assess your state of mind at the time
• State evaluations: Prosecutors usually hire their own doctors to challenge those findings
• Your statements: What you told police can either support or weaken the defense
• Advance notice: Your lawyer must formally notify the state before trial begins

A related but different concept is diminished capacity under N.J.S.A. 2C:4-2. It allows evidence of a mental disease or defect to show you lacked the specific state of mind a charge requires. It doesn’t excuse the conduct entirely, but it can affect which offense, if any, the state can prove.

Hung Jury In New Jersey: Can The State Retry You After A Mistrial?

New Jersey requires a unanimous verdict in every criminal jury trial. If jurors cannot agree after a reasonable period of deliberation, the judge may declare a mistrial. However, a hung jury does not necessarily end the case. Courts generally recognize a genuine jury deadlock as a “manifest necessity,” meaning that the double jeopardy protections under the U.S. Constitution and New Jersey Constitution ordinarily do not prevent prosecutors from bringing the case to trial again.

After a mistrial, prosecutors have choices. They may retry the same charges, seek a new indictment on different charges, or offer a plea. In New Jersey, murder falls under N.J.S.A. 2C:11-3, while aggravated manslaughter and reckless manslaughter fall under N.J.S.A. 2C:11-4. A New Jersey murder charge carries a mandatory minimum of 30 years without parole, so the gap between these offenses can change your life.

Your lawyer can also ask the court for a judgment of acquittal under New Jersey Court Rules 3:18-1 and 3:18-2. The judge asks whether, viewing the evidence in the state’s favor, a reasonable jury could find guilt beyond a reasonable doubt. These motions can succeed when the facts and law support them, but results vary depending on your particular circumstances.

Retrial After A Mistrial: What Practical Steps Should You Take Now?

A mistrial can feel like a pause button on the most stressful chapter of your life. The weeks that follow are often just as important as the trial itself. Here are steps that can help protect you:

• Stay off social media: Avoid posting about the case, the jurors, or the prosecutors
• Review the full record: Your lawyer should study every transcript from the first trial
• Keep your defense consistent: Sudden reversals can damage your credibility with new jurors
• Discuss plea options: A deadlock sometimes opens the door to new negotiations
• Plan for jury selection: Heavy media coverage may call for more careful questioning of jurors

Public statements deserve special care. New Jersey’s Rules of Professional Conduct, specifically Rule 3.6, limit what lawyers can say outside court when it could prejudice a proceeding. A focused defense keeps the case in the courtroom, where it belongs.

Cherry Hill Criminal Defense Attorney: How Do South Jersey Courts Handle Serious Homicide Cases?

Homicide and other first-degree cases in South Jersey are handled in the Superior Court of each county. That includes the Camden County Hall of Justice in Camden, the Burlington County courthouse in Mount Holly, the Gloucester County courthouse in Woodbury, and the Mercer County courthouse in Trenton. Each county prosecutor’s office has its own approach to charging, plea offers, and retrials.

Gelman Law knows those offices from the inside. The firm’s founder clerked for a New Jersey Superior Court judge and served as a prosecutor in the Burlington County Prosecutor’s Office before opening his practice. That background gives you a clearer picture of how the state builds its case and where it may fall short.

From our office at 850 Route 70 West in Cherry Hill, Gelman Law represents clients throughout Camden, Burlington, Gloucester, and Mercer counties. We also offer full services in Spanish, so you and your family can understand every step of the process.

Insanity Defense In New Jersey: Frequently Asked Questions

Can you use the insanity defense in New Jersey for any criminal charge?

It can be raised in many cases, but it is most common in serious violent charges. It requires strong mental health evidence and advance notice to the state.

What happens after a not guilty by reason of insanity verdict in New Jersey?

You don’t simply walk free. Under N.J.S.A. 2C:4-8, the court may order commitment to a psychiatric facility with periodic review hearings to decide whether continued treatment is needed.

Does a hung jury in New Jersey mean my case is over?

Usually not. A deadlock leads to a mistrial, and prosecutors can generally retry the case, amend the charges, or offer a plea.

When should I call a Cherry Hill criminal defense attorney about a New Jersey murder charge?

Right away, ideally before you speak with the police. Decisions about the insanity defense in New Jersey and other strategies start early and are hard to change later.

Retrial After A Mistrial In South Jersey: How Can Gelman Law Help You Move Forward?

The Lindsay Clancy case shows how quickly a high-stakes prosecution can shift and how much a consistent defense strategy matters. Whether you’re weighing the insanity defense in New Jersey, facing a retrial after a mistrial, or dealing with a first-time serious charge, the uncertainty can feel overwhelming. You deserve a team that will explain your options clearly and stand beside you.

Gelman Law will review your case, explain the law in plain language, and work toward the best result the facts and law support. Every case is different, and results may vary depending on your particular facts and legal circumstances. Schedule your case evaluation today. Call us at 856-861-4236 or fill out our secure online contact form to get started.

Disclaimer: This blog is intended for informational purposes only and does not establish an attorney-client relationship. It should not be considered as legal advice. For personalized legal assistance, please consult our team directly.