PLYMOUTH, Mass. — Testimony continues Tuesday in the murder trial of Lindsay Clancy, with jurors expected to hear more evidence about her mental health and medical treatment as prosecutors and defense attorneys continue to battle over her state of mind before and after the deaths of her three young children.
Day 6 of testimony began with Lindsay Clancy formally agreeing to a series of facts in the case that prosecutors would otherwise have had to prove through witness testimony and evidence.
Defense attorney Kevin Reddington said the agreement is intended to allow the trial to move more efficiently without requiring extensive testimony on issues not being disputed by the defense.
Experts were from the Massachusetts State Crime Lab were called to testify on the tests that were conducted inside and outside the home, as well on Clancy’s urine and blood samples.
Lisa Yelle from the Massachusetts Crime Lab testified that blood and urine tested positive for five drug substances.
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Follow Bob Ward’s play-by-play from court:
August 4, 2026, 3:05 p.m.
crook: blood on window sill is a transfer stain. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 3:04 p.m.
Crook identified blood drip pattern in front of full length mirror in 2nd floor bedroom. Also id'd drip stain or spatter stain on mirror. blood could have been on something that moved and landed on mirror, or something bled on mirror. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 3:01 p.m.
Now Crook is identifying various blood stains and patterns found in 2nd floor bedroom. #lindsayclancy @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 3:00 p.m.
Crook is testifying to the blood stained found on the carpet in basement near the area where Cora and Callan were found. She said there was a saturation stain and transfer stain as something moved across the area. @boston25 #lindsayclancy trial
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 2:36 p.m.
Sherri Crook MSP Crime Lab Supervisor next witness in #LindsayClancy triple murder trial. @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 2:32 p.m.
Zimmerman: No substances detected in blood Callan,Cora, or Dawson Clancy @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 2:25 p.m.
Alicia Zimmerman from MSP Crime Lab next witness in #LindsayClancy triple murder trial @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 2:17 p.m.
After lunch break, we are hearing the two sides stipulated to post mortem toxicology for Cora, Dawson, Callan Clancy @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 12:53 p.m.
Yelle said blood and urine tested positive for 5 drug substances. test does not identify quantity. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 12:45 p.m.
Lisa Yelle, MSP Crime Lab is next witness in #LindsayClancy triple murder trial @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 12:43 p.m.
Griffiths testified to the presence of prescription drugs in #LindsayClancy blood and urine taken while she was in hospital after the murders. @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 12:23 p.m.
Hilary Griffiths MSP Crime Lab is next witness in #LindsayClancy murder trial. @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 12:16 p.m.
O'Loughlin said the knife in the bedroom and the 3 exercise bands were of "no value" for finger print comparison analysis. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 12:00 p.m.
Jonathan O'Loughlin MSP Trooper is now called as witness in #LindsayClancy trial. @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 11:44 a.m.
Hartnett also tested the 3 exercise bands DA says were used to strangle the children. @boston25 #lindsayclancy Hartnett swabbed samples from both ends of each band. and the center of the bands.
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 11:40 a.m.
Hartnett just identified 3 shingles removed from Clancy home that contained blood stains for further analysis. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 11:01 a.m.
Hartnett said "orange ball" stain under bedroom window sill posted negative for blood. Patrick had testified that was his repair for woodpecker damage. AM break now. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:58 a.m.
on June 15, 23, months after the murders, Hartnett returned to house to test stains on exterior shingles near master bedroom. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:55 a.m.
Hartnett explained she observed the exterior stain, but had collected other sample. Said they seem to come from a "singular bleeder." Also tested stains found in yard. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:53 a.m.
Hartnett also tested red brown stains on inside of 2nd floor bedroom window for presence of blood, but not on outside. exterior photos show a red brown stain on outside of same 2nd floor bedroom window sill. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:49 a.m.
On night of murders, Hartnett tested red brown stain on basement floor where Cora was found for presence of blood. Also tested 4 stains in upstairs bedroom for presence of blood. all positive. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:40 a.m.
Maureen Hartnett, MSP Crime Lab is next witness in #LindsayClancy murder trial. @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:33 a.m.
Of the bottles Patrick Clancy handed in to MSP, none were empty. One was half empty, others still mostly full. some were missing only 2 or 3 pills. #lindsayclancy @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:27 a.m.
Lt. Rabbitt is testifying to prescription bottles found at #LindsayClancy house the night of the murders. And bag of prescription bottles Patrick Clancy turned in with his atty, David Meier on 2/6/23 @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:16 a.m.
Lt Joseph Rabbitt, MSP is called to the stand. #LindsayClancy @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:09 a.m.
Dr. Carpio: report showed cuts to wrists and neck were through skin of exposed fat, not muscles, arteries, tendon. did not see deep cuts. @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:01 a.m.
Dr. Carpio said #LindsayClancy had serious spinal injuries. Decision made to transfer her to Brigham and Women's for treatment. @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 10:01 a.m.
Dr. Carpio said #LindsayClancy arrived with low body temp. Wrapped her in "bear-hugger" blanket to raise temp. As body temp rose, lacerations needed no further treatment. @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 9:55 a.m.
Dr. Carpio said #LindsayClancy neck and wrist injuries were "superficial" and did not require treatment. @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 9:53 a.m.
Dr. Cristina Carpio from South Shore Hospital is first witness today. She treated #lindsayclancy on 1.24.23, the night of the murders. @boston25
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 9:45 a.m.
Judge Sullivan has accepted stipulations. Kevin Reddington said it relieves govt of calling chain of custody witnesses @boston25 #lindsayclancy
— Bob Ward Boston 25 (@Bward3) August 4, 2026
August 4, 2026, 9:41 a.m.
#LindsayClancy is stipulating to certain facts in her triple murder trial. @boston25 #truecrime
— Bob Ward Boston 25 (@Bward3) August 4, 2026
Get caught up on what happened Monday:
Monday marked a significant moment in the trial as jurors were introduced for the first time to testimony referencing postpartum psychosis, a central component of the defense’s case.
A psychiatrist from Brigham and Women’s Hospital testified that she communicated with Clancy through written notes just two days after the killings because Clancy was intubated and unable to speak.
According to the psychiatrist, when asked how she was feeling, Clancy wrote that she was “horrified.” The doctor also testified that Clancy wrote, “Do I have an attorney?”
Jurors also heard testimony from a Brigham and Women’s nurse. The nurse said a physician’s notes described Clancy as “critically ill” and included a diagnosis of “postpartum psychosis” in her medical records.
Late in the day, Clancy’s attorney Kevin Reddington introduced passages from a personal journal she kept in the months leading up to the murders. The entries detailed struggles with anxiety, depression, insomnia and her efforts to seek help.
Reddington read one entry aloud in court.
“I now have horrible insomnia and anxiety, which is causing depression. And I have no appetite. I don’t know what’s wrong with me. I want help. I want to be well!”
Reddington has argued that Clancy was suffering from postpartum psychosis at the time of the killings and should not be held criminally responsible.
Prosecutors, however, contend the killings were deliberate and methodically planned. They argue Clancy was overwhelmed by the pressures of motherhood but fully understood her actions.
As testimony enters its sixth day Tuesday, additional medical professionals are expected to take the stand for the prosecution. It remains unclear whether jurors will hear more excerpts from Clancy’s journal as the trial continues in Plymouth Superior Court.
Boston 25 News will continue to provide updates from inside the courtroom throughout the day.
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