Lindsay Clancy Trial: Judge Denies Mistrial Over Religious Testimony

Testimony Interrupted by Religious References

Dr. Kirk Heilbrun, the second rebuttal witness for the prosecution, was questioned in the afternoon about his April interview with Clancy when the exchange occurred. According to Heilbrun’s testimony, Clancy expected that she and her children would be together in heaven, leading the psychologist to ask her about Catholic teachings on mortal sin and suicide. Defense attorney Kevin Reddington immediately objected, leading to a sidebar conference and a brief recess before the defense moved for a mistrial. Reddington argued that introducing religion, heaven, and the impact on the children was over the top and prejudicial.

Judge Sullivan denied the mistrial request, noting that he would not declare a mistrial over the testimony. However, the judge firmly reprimanded the prosecution and instructed the jury upon their return that the remarks were immaterial, irrelevant, and to be disregarded entirely. Legal expert Jennifer Roman noted that questions surrounding a person’s faith typically lack relevance in such proceedings unless specifically tied to the case at hand, explaining why the defense moved swiftly to object.

Psychological Evaluation and Rebuttal Testimony

The prosecution called Heilbrun as part of its rebuttal case following the defense’s presentation. Heilbrun detailed Clancy’s mental health history, stating she had a limited history prior to September 2022, characterized mostly by achievement-related anxiety as a straight-A student and subsequent anxiety connected to her three pregnancies. He noted that her symptoms intensified in mid-October when she began taking Zoloft, after which she experienced depression, severe insomnia, and stress. Heilbrun also testified that Clancy reported intrusive thoughts about harming herself in late November and early December, which occasionally shifted to harming her children, though she described these as her own thoughts rather than auditory hallucinations.

Mack testified previously that he met with Clancy at Tewksbury Hospital in April, where she recalled telling her three children to “go to God” during the January 2023 incident in her Duxbury home. Mack maintained his assessment that Clancy suffered from depression rather than postpartum psychosis at the time of the killings. The defense rested its case on Friday following testimony from forensic psychiatrist Dr. Phillip Resnick—a key figure in the Andrea Yates trial—who testified that Clancy reported an external force taking over her body.

Next Steps in the Trial

Following Monday’s abrupt adjournment, Judge Sullivan outlined the schedule for Tuesday, August 25, 2026. Court is set to resume with the completion of Dr. Kirk Heilbrun’s testimony, followed by a final witness and discussions regarding the next steps in the trial. Clancy has pleaded not guilty to first-degree murder charges in the deaths of 5-year-old Cora, 3-year-old Dawson, and 8-month-old Callan. If convicted, she faces life in prison without the possibility of parole; if found not criminally responsible, she will be committed to a state psychiatric hospital.

Frequently Asked Questions

What charges does Lindsay Clancy face?
Clancy faces charges of first-degree murder in the deaths of her three children: 5-year-old Cora, 3-year-old Dawson, and 8-month-old Callan.

Why did the defense move for a mistrial on Monday?
Defense attorney Kevin Reddington requested a mistrial after prosecution witness Dr. Kirk Heilbrun brought up Catholic religious beliefs and suicide during afternoon testimony, which the defense argued was highly prejudicial.

What is the core argument of the defense?
The defense argues that Clancy should not be held criminally responsible because she was suffering from postpartum psychosis and was overmedicated at the time of the killings.

If you or someone you know is in emotional distress or a suicidal crisis, please call or text the 988 Suicide & Crisis Lifeline at 988.