Lindsay Clancy’s trial has officially ended in a mistrial after jurors remained unable to reach a unanimous verdict.

PLYMOUTH, Mᴀss. – Lindsay Clancy’s grueling murder trial came to an end Friday when the judge officially declared it a mistrial over a lone juror holdout – despite her lawyer’s desperate 11th-hour bid to block the outcome.

“Members of the jury, at this point I’m going to declare that the jury is ᴅᴇᴀᴅlocked and I am going to declare a mistrial,” Plymouth Judge William Sullivan said after over 38 hours of deliberation across seven days.

“I understood how hard everybody worked on this case, I understood that you all gave everything you could and probably more than you thought you could — so on behalf of myself I just want to thank you so much, you should be proud for what you did, you braced for that duty, you performed that duty,” the judge said.

Lindsay Clancy watches jurors enter the courtroom during her trial.
Defendant Lindsay Clancy watches jurors enter the courtroom on Friday.USA TODAY Network via Reuters ConnectEarlier Friday, Sullivan read the jury’s third ᴅᴇᴀᴅlock note informing the judge “with a heavy heart” they couldn’t reach a unanimous verdict.

He had been ready to call in the jury to declare a mistrial when Clancy’s lawyer, Kevin Reddington, dramatically begged him to hold off so he could file an emergency appeal to stop the decision.

The judge reluctantly granted the defense lawyer just one hour for the Hail Mary legal maneuver

But prosecutors must still officially decide whether to try the case a second time, negotiate a plea deal with Clancy, downgrade the charges — or drop them altogether.

Reddington previously indicated Plymouth District Attorney Timothy Cruz could downgrade the charges to second-degree murder. The hypothetical scenario would allow Clancy to choose a judge rather than a jury to oversee her retrial — an option not afforded to her with first-degree murder charges, Reddington said.

However, outside court Friday, Cruz said, “no decisions will be made today,” on how his office would proceed with the case.

But the DA insisted the case was about Clancy’s “cruel, calculated killings of three innocents” and about “getting justice for those three little babies.”

Clancy is due back in court on Sept. 29 for a hearing.

Plymouth County District Attorney Tim Cruz speaking to reporters after a mistrial was declared in Lindsay Clancy's murder trial.
District Attorney for Plymouth County Tim Cruz speaks to the media after a judge declared a mistrial in Lindsay Clancy’s murder trial at Plymouth County Superior Court on Sept. 4, 2026, in Plymouth, Mᴀss.AP PH๏τo/Charles Krupa

The jurors were hopelessly ᴅᴇᴀᴅlocked for days on whether to convict the 36-year-old mother of fatally strangling her kids, Cora, 5, Dawson, 3, and Callan, 8 months, on Jan. 24, 2023.

Reddington argued at trial that Clancy shouldn’t be held criminally responsible because she was suffering from severe postpartum psychosis and hallucinated a voice telling her to carry out the killings and to kill herself.

– but Reddington’s last-ditch bid to Mᴀssachusetts’ highest appeals court was ultimately struck down.

The mistrial doesn’t mean Clancy gets to go free, however — she will instead remain at Tewksbury Hospital, where she has been held for the past three years, until her potential retrial — which Sullivan announced could be as soon as this fall.

It was revealed by Reddington that one male holdout juror was stopping the group from reaching a unanimous verdict.

The 12-person jury – composed of three men and nine women – sent out two prior notes on Tuesday and Wednesday telling Sullivan they were at an impᴀsse. Both times the judge told them to keep at it, invoking a “Tuey-Rodriguez” charge following the second notice.

Defendant Lindsay Clancy and attorney Kevin Reddington listen to the judge declare a mistrial.
Defendant Lindsay Clancy and attorney Kevin Reddington listen to the judge declare a mistrial in Plymouth, U.S.,on September 4, 2026.via REUTERS
Judge Sullivan indicating a mistrial to the jury.
Judge Sullivan indicates he will rule a mistrial after the jury in the Lindsay Clancy case indicated they are unable to reach a verdict on Friday.Greg Derr/The Patriot Ledger

Just one day later, on Thursday, the female foreperson wrote a note claiming there was just one holdout juror who Reddington alleged “refuses to listen to the law” on reasonable doubt.

Sullivan then questioned each juror one by one, asking if they could follow his instructions, which they all said they could. He then brought out the dozen jurors as a group and reread the portion of his instructions on reasonable doubt.

Lawyer Kevin Reddington speaking to the media after a mistrial was declared in Lindsay Clancy's murder trial.
Lawyer Kevin Reddington speaks to media after the judge declared a mistrial in Lindsay Clancy’s murder trial at Plymouth County Superior Court Sept. 4, 2026, in Plymouth, Mᴀss.AP PH๏τo/Charles Krupa
Lindsay Clancy's parents, Mike Musgrove and Paula Musgrove, walk back to Plymouth County Superior Court.
Lindsay Clancy’s parents, Mike Musgrove, left, and Paula Musgrove walk back to Plymouth County Superior Court after a recess for lunch in Lindsay Clancy’s murder trial on Sept. 4, 2026, in Plymouth, Mᴀss.AP PH๏τo/Charles Krupa

But Friday morning, Reddington pleaded with Sullivan to take aside that one holdout juror and grill him — a request the judge denied, saying Thursday’s note “does not indicate that this is a person who has refused to follow the law.”

The defense attorney claimed the juror lied to Sullivan when he said he could follow the judge’s rules on the law.

For nearly a week before the trial kicked off, the lawyers and the judge worked to narrow down some 300 potential jurors to the 18 who sat for the entire trial. It wasn’t until the trial concluded that the six alternates were selected to sit out while the final jury deliberated.

The jury heard five weeks of at times excruciating testimony, starting with Clancy’s then-husband, who described how her mental health declined in the four months before the killings.

Patrick Clancy — who has since relocated to New York City and remarried an infertility specialist — told the jurors about how his ex-wife relentlessly sought help from doctors to address her crippling insomnia, anxiety, depression and thoughts of killing herself and harming the kids from September 2022 through January 2023.

Patrick Clancy with his children Cora, 6, Dawson, 3, and Callan, 8 months.
Patrick Clancy is pictured with his children Cora, 6, Dawson, 3, and Callan, 8 months. Clancy is charged with murdering her three young children in 2023 at their Duxbury home.GoFundMe

Lindsay Clancy, a former labor and delivery nurse, was prescribed 13 powerful psychiatric medications over the course of those months, which Reddington argued exacerbated her spiraling mental state.