Lindsay Clancy
A woman hailing from Massachusetts has been arrested outside Plymouth Superior Court on suspicion of intimidating a juror during the high-profile Lindsay Clancy murder trial X / @CoffindafferFBI

A woman was arrested outside Plymouth Superior Court in Massachusetts on Tuesday afternoon on suspicion of intimidating a juror, just minutes after the jury in the high-profile Lindsay Clancy murder trial told the judge it was deadlocked following four days of deliberations.

Massachusetts State Police said Dawn Light was taken into custody at around 3.40pm on Tuesday outside the courthouse. She is expected to be charged with intimidating a witness, juror, or person providing information in connection with criminal proceedings, WCVB reported.

Police have not confirmed whether the alleged intimidation involved a member of the Clancy jury or related to a separate matter before the same court.

Light's arrest came only minutes after jurors were dismissed for a fourth consecutive day of deliberations, having earlier told the judge they had reached an impasse.

The judge instructed them to keep deliberating, and they were due back in court on Wednesday. No further details of the allegations against Light, or the identity of the intended target, have been released.

Intimidation Allegation Casts Shadow Over Trial

Intimidating a juror or witness is treated as a serious offence under US law, striking at the core of the justice system.

The allegation surfacing on the courthouse steps, at a moment of intense public scrutiny of the Clancy case, has raised fresh questions around the already difficult process.

Clancy, a former labour and delivery nurse, is accused of killing her three children, five-year-old Cora, three-year-old Dawson and eight-month-old Callan, in 2023. She faces life imprisonment if convicted of murder.

Prosecutors allege Clancy deliberately killed the children at the family home before attempting to take her own life, and that she understood the nature of her actions and knew them to be wrong.

Her defence lawyer, Kevin Reddington, has argued she was suffering from postpartum psychosis and was not criminally responsible at the time. That dispute lies at the heart of the case, requiring jurors to weigh the facts of the deaths against complex questions of mental illness and culpability.

The deadlock reported on Tuesday reflects how difficult that task has proven, with courts typically encouraging jurors to continue talking in the hope that further discussion will produce consensus. That this has not yet happened points to significant divisions among jurors over Clancy's mental state and the legal threshold for responsibility.

Unclear Whether Arrest Linked to Clancy Jury

Court officials have not said whether additional security measures have been introduced around jurors following Light's arrest. State police have confirmed only the time, location and expected charge, without elaborating on any connection to the Clancy proceedings. It has not been independently verified whether Light's alleged conduct was linked to the Clancy jury.

Jurors are ordinarily instructed not to discuss cases, follow media coverage or engage with public commentary during deliberations, a safeguard intended to shield them from outside pressure. An arrest of this kind so close to the courthouse highlights how that protection can be tested.

Families connected to the case have largely stayed out of public view during deliberations, while small crowds have continued to gather outside the court.

Further details on the circumstances of Light's arrest are expected to clarify whether the incident was unconnected to the Clancy trial or tied to the jury itself.

For now, Light remains in custody, Clancy awaits a verdict that could result in a life sentence, and jurors have been told to continue their deliberations.