Developing·Case the developing record
#DC-0078

Lindsay Clancy

Massachusetts criminal trial over murder charges in the 2023 deaths of her three children.

Charged · allegations
last updated 10 October 2026 · 36 sources
Confirmed facts
40
Open questions
3
Jurors
Hung jury
Opening
27 Jul 2026
This case is still developing. Get an email when the file updates.
Audio brief · automated narration of the sourced record
Transcript

Case file Lindsay Clancy, reference D C zero zero seven eight. According to CBS Boston’s summary of prosecutors’ account, Cora Clancy, five, and Dawson Clancy, three, were found dead in the family’s Duxbury, Massachusetts, home on January twenty-fourth, twenty twenty-three. AP reported that infant Callan Clancy died on January twenty-seventh after being hospitalized. CBS Boston reported that Lindsay Clancy was later indicted on three counts each of murder and strangulation; those charges remain unproven allegations. AP reported she pleaded not guilty. AP and CBS Boston reported jury selection began in Plymouth Superior Court in July twenty twenty-six. Opening statements began July twenty-seventh, with prosecutors arguing intentional conduct and the defense arguing she was too mentally ill to be criminally responsible. CBS Boston reported testimony ended after eighty-five witnesses. AP and CBS News reported Judge William Sullivan declared a mistrial on September fourth after jurors said they could not reach a unanimous decision. The file’s open questions include whether prosecutors will retry the case, seek lesser charges, pursue a plea, or drop it, and how Judge Sullivan will rule on pending defense motions. This has been an automated reading of case file D C zero zero seven eight at developing case dot com. Every fact you heard names a public source.

Timeline of what's confirmed40 entries
24 January 2023
Cora Clancy, 5, and Dawson Clancy, 3, were found dead in the family's Duxbury, Massachusetts, home, according to CBS Boston's summary of prosecutors' account.
CBS Boston
27 January 2023
Callan Clancy, the infant son who had been hospitalized after the Duxbury incident, died, according to AP.
AP
7 February 2023
Not guilty pleas were entered on Lindsay Clancy's behalf to initial charges that included two counts of murder, three counts of strangulation and three counts of assault and battery with a dangerous weapon, according to AP.
AP
7 February 2023
Judge John Canavan III did not set monetary bail or send Lindsay Clancy to jail, and ordered that she remain hospitalized until she was well enough to move to a rehabilitation facility, according to AP.
AP
15 September 2023
Lindsay Clancy was indicted by a grand jury on three counts each of murder and strangulation; the charges are unproven allegations, according to CBS Boston.
CBS Boston
13 July 2026
Judge William Sullivan denied a defense motion to call witnesses who said they had personal experience with postpartum psychosis, according to CBS Boston.
CBS Boston
20 July 2026
Jury selection began in Plymouth Superior Court for Lindsay Clancy's murder trial, according to AP and CBS Boston.
AP; CBS Boston
20 July 2026
AP reported that Lindsay Clancy had pleaded not guilty to murder charges in the deaths of Cora, Dawson and Callan, and that prosecutors said the deaths were intentional and planned while the defense planned to raise an insanity defense tied to postpartum mental-health issues.
AP
23 July 2026
A jury of 12 women and six men was seated for Lindsay Clancy's trial, according to CBS Boston.
CBS Boston
27 July 2026
Opening statements are expected to begin, followed by witness testimony, according to CBS Boston.
CBS Boston
27 July 2026
Opening statements began in Plymouth Superior Court; prosecutors argued that Lindsay Clancy acted intentionally, while defense counsel argued she was too mentally ill to be criminally responsible, according to AP and CBS Boston.
AP; CBS Boston · added 8 Aug 2026
27 July 2026
Patrick Clancy, Lindsay Clancy's ex-husband, was the first witness to testify, according to CBS Boston.
CBS Boston · added 8 Aug 2026
29 July 2026
Jurors heard Patrick Clancy's 911 call, and Patrick Clancy completed his testimony, according to CBS Boston.
CBS Boston · added 8 Aug 2026
31 July 2026
Jurors visited the family's former Duxbury home, were driven past two businesses relevant to the case narrative, and viewed interior areas and the yard, according to AP.
AP · added 8 Aug 2026
3 August 2026
The prosecution and defense read pages from Lindsay Clancy's journal to jurors; AP reported the entries described anxiety, feeling overwhelmed by motherhood and brain fog.
AP · added 8 Aug 2026
5 August 2026
Former nanny Elaine Rossi testified that Lindsay Clancy had lost significant weight, could not sleep and had postpregnancy mental-health complaints, but Rossi had not worried Clancy might be a danger to herself or her children, according to AP.
AP · added 8 Aug 2026
6 August 2026
Friends, a former colleague and Lindsay Clancy's former father-in-law testified about her mental and emotional state; AP reported that none of the Thursday witnesses testified they heard her express suicidal or homicidal thoughts, hearing voices or wanting to harm her children.
AP · added 8 Aug 2026
7 August 2026
Psychiatrists Jennifer Tufts and Alia Goodheart testified about Lindsay Clancy's psychiatric care before 24 January 2023; AP reported that Tufts said Clancy gave no indication on 23 January 2023 of hearing voices or planning to harm the children.
AP · added 8 Aug 2026
12 August 2026
Judge William Sullivan sent jurors out twice for recess during medical-examiner testimony after Lindsay Clancy became emotional, according to CBS Boston.
CBS Boston · added 3 Sep 2026
17 August 2026
The prosecution rested its case after calling 72 witnesses, according to CBS Boston.
CBS Boston · added 3 Sep 2026
18 August 2026
Dr. Paul Zeizel testified for the defense that Lindsay Clancy reported hearing a male voice telling her she had to kill her children and die by suicide, according to CBS Boston.
CBS Boston · added 3 Sep 2026
20 August 2026
Hospital chaplain Sheila Cavanaugh testified for the defense that Lindsay Clancy alluded to hearing a persistent male voice, while the prosecutor noted Cavanaugh's detailed notes did not include that claim, according to CBS Boston.
CBS Boston · added 3 Sep 2026
21 August 2026
The defense rested its case, and prosecutors began calling rebuttal witnesses, according to AP.
AP · added 3 Sep 2026
21 August 2026
Defense expert Dr. Phillip Resnick testified that, in his opinion, Lindsay Clancy was clearly psychotic and not in control of her actions on the day of the children's deaths, according to AP.
AP · added 3 Sep 2026
21 August 2026
Prosecution rebuttal witness Dr. Avram Mack testified that he found no evidence of mania, hypomania or psychosis leading up to the children's deaths, according to AP.
AP · added 3 Sep 2026
24 August 2026
Prosecution witness Dr. Kirk Heilbrun testified that, in his opinion, Lindsay Clancy did not have acute psychosis and that he ruled out command hallucinations, according to AP.
AP · added 3 Sep 2026
24 August 2026
Judge William Sullivan denied a defense mistrial request after Dr. Kirk Heilbrun mentioned Lindsay Clancy's Catholic faith and later instructed jurors to disregard the reference, according to AP.
AP · added 3 Sep 2026
26 August 2026
Testimony ended after jurors heard from 85 witnesses, and the judge and attorneys discussed jury instructions and verdict slips; manslaughter would be included as an option, according to CBS Boston.
CBS Boston · added 3 Sep 2026
27 August 2026
Closing arguments concluded, and 12 deliberating jurors — nine women and three men — began deliberations at 12:34 p.m., according to CBS Boston and AP.
CBS Boston; AP · added 3 Sep 2026
1 September 2026
Jurors sent Judge William Sullivan a note saying they had been unable to reach a unanimous decision, and he told them to keep deliberating, according to AP and CBS Boston.
AP; CBS Boston · added 3 Sep 2026
2 September 2026
Jurors again told Judge William Sullivan they were deadlocked, and he gave them a Tuey-Rodriguez instruction before deliberations continued, according to AP and CBS Boston.
AP; CBS Boston · added 3 Sep 2026
3 September 2026
Jurors returned for a sixth day of deliberations, according to AP.
AP · added 3 Sep 2026
4 September 2026
Judge William Sullivan declared a mistrial after jurors said for a third time that they could not unanimously decide whether Lindsay Clancy was criminally responsible; the charges remain unproven allegations.
AP; CBS News · added 10 Oct 2026
4 September 2026
After the mistrial, Lindsay Clancy remained charged with murder and held in a psychiatric hospital while the case awaited resolution, according to AP.
AP · added 10 Oct 2026
4 September 2026
AP reported that 11 of 12 jurors were ready to clear Lindsay Clancy of criminal responsibility, while one juror sided with prosecutors.
AP · added 10 Oct 2026
18 September 2026
In a motion filed Friday and made public on 21 September 2026, defense lawyer Kevin Reddington asked the court to question the holdout juror about alleged cellphone use during deliberations and truthfulness in jury-related questioning; the allegations about the juror are unproven.
AP; CBS News · added 10 Oct 2026
21 September 2026
Defense lawyer Martin Weinberg asked Judge William Sullivan to dismiss the criminal case rather than allow a new trial, arguing that the mistrial should not have been declared, according to AP.
AP · added 10 Oct 2026
29 September 2026
At a hearing, Kevin Reddington argued that prosecutors had not offered enough evidence to prove Lindsay Clancy caused her children's deaths; prosecutor Shanan Buckingham disputed that argument, according to AP.
AP · added 10 Oct 2026
1 October 2026
Judge William Sullivan denied the defense motion for a required finding of not guilty and ruled that the evidence was sufficient to send the case to a jury, according to AP and CBS Boston.
AP; CBS Boston · added 10 Oct 2026
2 November 2026
The next hearing date is set for 2 November 2026, according to CBS Boston.
CBS Boston · added 10 Oct 2026
Open questionsunconfirmed · not conclusions
How many police, EMT or first-responder witnesses will be allowed to testify about the scene?CBS Boston reported the judge said he would evaluate testimony as the trial proceeds · unconfirmed
Will prosecutors retry Lindsay Clancy, seek lesser charges, pursue a plea, or drop the case?unconfirmed because AP and CBS reported no final prosecution decision after the mistrial · unconfirmed
How will Judge William Sullivan rule on the defense motions about the holdout juror and double jeopardy dismissal?unconfirmed because AP and CBS reported the defense motions but no ruling on those motions · unconfirmed
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