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Lindsay Clancy agreed Tuesday to allow prosecutors to treat certain forensic facts as established, narrowing the Massachusetts mother’s murder trial toward the central question of whether she was criminally responsible for the murders of her three children.
Clancy repeatedly answered, “Yes, your Honor,” as Judge William Sullivan explained that the stipulation meant prosecutors would not have to independently prove the listed facts and that she was giving up limited rights to confront witnesses or present evidence contesting them.
Sullivan found that Clancy was competent to enter the agreement and had done so “knowingly, intelligently, voluntarily and willingly.”
Defense attorney Kevin Reddington said the agreement would spare jurors days of testimony establishing the chain of custody for blood, bodily fluids and DNA evidence.
The defense is expected to argue Clancy lacks criminal responsibility because she suffered from postpartum psychosis and was overmedicated. (Greg Derr/The Patriot Ledger via Pool)
“We have not been contesting the government’s case in chief, if you will,” Reddington told the court.
The stipulation is not a guilty plea or an admission that Clancy was legally responsible for murder.
Clancy is charged in the deaths of Cora, 5, Dawson, 3, and Callan, 8 months, inside the family’s Duxbury home. Her defense says she was suffering from postpartum psychosis. Prosecutors argue she acted deliberately and understood what she was doing.
Jurors also heard Tuesday from the trauma surgeon who treated Clancy after she fell approximately 20 feet from a second-story window.
Dr. Cristina Carpio testified that Clancy arrived at South Shore Hospital as a Level 1 trauma patient with a body temperature of approximately 82.1 degrees and complex, unstable fractures in her thoracic spine.
Clancy was intubated and later transferred to Brigham and Women’s Hospital for a higher level of care.
WATCH: Trooper reveals what investigators found inside Lindsay Clancy home
A Massachusetts State Police lieutenant later testified that investigators searching the Clancy home found a CVS bag containing a bottle of Pedia-Lax, a larger paper bag with a receipt and multiple medication bottles in an upper kitchen cabinet.
The CVS evidence corroborates her then-husband Patrick Clancy’s account that he left the home to purchase medicine before picking up dinner.
WATCH: Trooper details crime scene evidence collection at Lindsey Clancy’s home
Massachusetts State Police forensic scientist Maureen Hartnett testified that she observed “red-brown stains” on Clancy’s hands at South Shore Hospital and collected samples for “potential biological evidence,” later taking swabs from beneath her fingernails at Brigham and Women’s Hospital.
“I was informed that additional testing was being requested on some of the red-brown stains that were noted on the exterior of the house, up on the shingles they had not previously collected from,” she said.
Hartnett’s testimony established how investigators mapped and preserved biological evidence from Clancy’s body as well as the area where the Massachusetts’ mother fell following her suicide attempt.
WATCH: Trooper details specialized crime scene training in Lindsay Clancy trial
Massachusetts State Police Trooper Jonathan O’Loughlin testified that investigators recovered no usable fingerprints from the knife or three exercise bands collected inside the Clancy home.
“Fingerprints are extremely fragile,” O’Loughlin said, explaining that investigators processed the items before biological testing because later handling could destroy latent prints.
He said the knife showed limited friction-ridge detail, but there was “not enough characteristics or minutia to do any comparison,” and the prints were deemed to have no value.
Defendant Lindsay Clancy on Monday, Aug. 3, 2026, the fifth day of testimony at Plymouth Superior Court for her murder trial. Clancy is charged with three counts of murder in connection with the death of her three young children in 2023 at their Duxbury home. Clancy says she was suffering from postpartum psychosis and is not criminally responsible. (Greg Derr/Pool/The Patriot Ledger)
Tuesday’s evidence followed Reddington’s effort Monday to blunt prosecutors’ portrayal of Clancy as organized and calculating.
“People can communicate and plan and act on plans even if they’re in the middle of a psychosis, right?” Reddington asked Dr. Sejal Shah Monday.
“Yes,” Shah replied.
Reddington then asked whether someone must be “drooling and stumbling and unable to walk and talk” to be psychotic. Shah said no and agreed that a person in psychosis can still communicate with others.
Clancy is charged in the deaths of Cora, 5, Dawson, 3, and Callan, 8 months, inside the family’s Duxbury home. Her defense maintains she was suffering from postpartum psychosis. Prosecutors argue she acted deliberately and understood what she was doing.
Dr. Sejal Shah testified she examined Clancy multiple times at Boston’s Brigham and Women’s Hospital in January and February 2023. (Greg Derr/Pool/The Patriot Ledger)
Seth J. Zuckerman, a celebrity criminal defense attorney, former New York City prosecutor and founder of Zuckerman Legal Group, said the case will turn on Clancy’s mental state at the precise time the children were killed.
“What was in her mind at the exact time that she killed her children?” Zuckerman told Fox News Digital.
He said prosecutors have focused on Patrick Clancy’s trips to CVS and a local restaurant, along with his communications with his wife, to portray her as lucid during the critical time frame.
WATCH: Psychiatrist calls Lindsay Clancy an ‘honest’ patient
LINDSAY CLANCY’S EX-HUSBAND DETAILS PILL USE AS EXPERT SAYS EVIDENCE COULD SHAPE MURDER TRIAL
Shah, an associate chief of psychiatry and medicine at Brigham and Women’s Hospital, first evaluated Clancy five days after the killings.
She testified that Clancy was confused, made mistakes during a cognitive assessment and had experienced visual hallucinations after spinal surgery.
Shah diagnosed delirium and said possible causes included anesthesia, oxygen problems and an elevated heart rate. The symptoms resolved by the following day, Shah said.
Prosecutors argued in opening statements that Lindsay Clancy “deliberately and meticulously” killed her children and “acted intentionally, rationally and swiftly to accomplish a very specific goal.” (Greg Derr/Pool/The Patriot Ledger)
During later evaluations, Clancy appeared calm and cooperative, displayed organized and goal-directed thinking and denied hallucinations and suicidal or homicidal intent.
Reddington used cross-examination to argue those observations did not establish Clancy was free of psychosis at the time of the killings.
“Was she, in your opinion and your experience, an honest patient telling you what her symptoms were, if any?” Reddington asked.
“Yes,” Shah said.
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“She didn’t go off and try to exaggerate to you and say, ‘I’m seeing visions, and I’m hearing voices,’ and suicidal ideation and homicidal ideas,” Reddington said. “She didn’t say any of those things to you, did she?”
“Correct,” Shah said.
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“So this is not, in your opinion, someone who was trying to exaggerate her conditions for some legal reason, correct?” Reddington asked.
“No,” Shah replied.
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Zuckerman called that concession “extremely helpful to the defense,” although not decisive.
“They want to portray her as someone who wasn’t manipulative, who didn’t have some grand plan,” he said.
Lindsay Clancy appears in court Monday in Plymouth, Massachusetts. She has pleaded not guilty to three counts of murder for the killings of her children. (Greg Derr/Pool/The Patriot Ledger)
On redirect, prosecutors challenged the defense’s portrayal by focusing on Clancy’s medication history.
Shah agreed Clancy was not taking every psychiatric medication discussed at the same time and said she had not known some prescriptions were barely used or untouched.
Shah also confirmed that Clancy requested do-not-resuscitate status after surviving her fall from a second-story window. The hospital did not immediately change her status because of the reported suicide attempt.
Shah said Clancy later agreed her mental health should be stabilized before reconsidering the request.
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Zuckerman said Monday’s cross-examination helped the defense by supplying testimony that Clancy could appear lucid at some moments while experiencing severe psychiatric symptoms at others.
Still, he said its value will depend on whether the defense can connect those symptoms to the moment the children were killed.
“The burden is on the prosecutors to show that she was criminally responsible at the time of the deaths,” Zuckerman said. “That is unique to Massachusetts, and I think it’s beneficial to the defense here.”
On January 24, 2023, Clancy fatally strangled her three children in the basement of their Duxbury, Massachusetts, home using exercise resistance bands. She then cut her wrists and neck and jumped from a second-story window in a suicide attempt, leaving her partially paralyzed. (Greg Derr/Pool/The Patriot Ledger)
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Clancy, a former labor and delivery nurse at Massachusetts General Hospital, has pleaded not guilty to three counts each of murder and strangulation. Judge William Sullivan told jurors that the Commonwealth must prove beyond a reasonable doubt that Clancy was criminally responsible when the children were killed.
