What a mistrial means as Lindsay Clancy jury fails to reach verdict
Warning: This article contains discussion of suicide and child loss which some readers may find distressing.
The Lindsay Clancy murder trial has taken another dramatic turn after the judge said he intended to declare a mistrial when jurors failed to reach a unanimous verdict.
Judge William Sullivan made the decision after the jury had spent several days deliberating over whether Clancy was criminally responsible for killing her three children.
The decision comes after the judge had already been informed twice by the jury that the panel was struggling to reach a verdict, and on Thursday (3 Sept), the foreperson reportedly voiced concerns about one juror's approach to the law on reasonable doubt.
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Clancy's lawyer Kevin Reddington asked for the juror to be dismissed, but the judge rejected the request, saying he did not want to take sides in the jury's deliberations.
The jurors were subsequently sent home after their sixth day of deliberations, before returning to continue discussions.
What is Lindsay Clancy accused of?
Clancy, 36, was accused by prosecutors of 'intentionally' killing her three children at their Massachusetts home in January 2023 before attempting to take her own life, which resulted in the former labour and delivery nurse being paralysed from the waist down.
Prosecutors allege Clancy strangled her five-year-old daughter Cora, three-year-old son Dawson and eight-month-old son Callan with a resistance band one by one, with Plymouth County Assistant District Attorney Shanan Buckingham alleging she 'pulled until their little bodies were limp and lifeless'.
She does not dispute that she killed the trio, however, but instead argues she was suffering from severe postpartum psychosis at the time and therefore should not be held criminally responsible for the deaths.
The trial heard evidence that her mental health had deteriorated considerably in the months beforehand.
Clancy's mother told the court that her daughter had messaged her saying medication prescribed for anxiety was making things worse, while Clancy had also spoken about having thoughts of harming her children.
Her former husband, Patrick, has also supported her defence, maintaining that Clancy had been 'very depressed' before the killings, and that she experienced a significant deterioration in the month leading up to the deaths.
Patrick also backed his ex in a civil lawsuit against her former medical providers, which alleges they failed to properly diagnose and monitor her severe postpartum psychiatric condition.
What verdicts could the jury reach?
At its heart, the jury had to decide whether Clancy should be held criminally responsible for her children's deaths.
The prosecution's case was that she purposefully killed Cora, Dawson and Callan and understood what she was doing.
Had the jury agreed, Clancy could have been found guilty of murder.
The precise degree of murder would have determined her sentence, but a first-degree murder conviction carries life in prison without parole in Massachusetts.
The other major possibility was the one Clancy's defence had been fighting for: a finding that she was not criminally responsible because of mental illness.
Her lawyers argued that she was experiencing severe postpartum psychosis when she killed her children and was unable to appreciate the wrongfulness of her actions.
A person found not guilty by reason of lack of criminal responsibility can be committed to a psychiatric facility and remain there if they are considered a danger to themselves or others.
However, the jury did not reach a verdict on either argument.
What does 'mistrial' actually mean?
A mistrial essentially means a trial has ended without a verdict.
In this case, the jury became deadlocked and there was no realistic prospect of the unanimous decision required - meaning Judge Sullivan ultimately declared a mistrial.
And while that might sound like a dramatic conclusion, it is important to remember that a mistrial is not the same thing as an acquittal.
Clancy has not been declared innocent, and the murder charges have not simply disappeared.
Instead, the case remains unresolved.
Why was the jury so divided in this case?
While Clancy admitted to the killings, the entire case hinged on why she did it, and whether she could legally be held responsible.
During the trial, forensic psychologist Dr Kirk Heilbrun testified that Clancy experienced what he described as 'altruistic filicide', believing her children would suffer without her and that killing them would allow them to be together in heaven.
Prosecutors painted a very different picture, arguing that although Clancy had serious mental health problems, she understood what she was doing and deliberately killed her children.
They cited the fact she sent Patrick away from their Duxbury property to run errands on the day of the killings, after allegedly looking into how long it might take him to return.
The disagreement ultimately left jurors unable to reach the unanimous decision needed to determine Clancy's criminal responsibility.
During the trial, forensic psychologist Dr Kirk Heilbrun testified that Clancy experienced what he described as 'altruistic filicide', believing her children would suffer without her and that killing them would allow them to be together in heaven.
Prosecutors have painted a very different picture, arguing that although Clancy had serious mental health problems, she understood what she was doing and deliberately killed her children.
They cite the fact she sent Patrick away from their Duxbury property to run errands the day of the killings, after allegedly looking into how long it might take him to return.
That leaves the jury with an incredibly difficult question over criminal responsibility.
What happens after a mistrial?
Now that the mistrial has been declared, prosecutors have a number of options.
They could decide to retry Clancy, meaning a new jury would hear the case and the evidence would essentially be presented again.
However, a second trial is certainly not automatic.
"Any time the threat of a retrial with murder one hanging over the client is re-interjected, defence lawyers will, at the very least, explore whether or not there's any interest in a resolution," he told Spectrum Local News.
That means a mistrial would not necessarily lead to another six-week courtroom battle.
Prosecutors could instead explore a potential plea deal with Clancy's defence team, or potentially decide not to retry the case at all.
Rhianna Benson