The prosecution's star final witness in the Lindsay Clancy trial is a forensic psychiatrist who last treated a woman with postpartum psychosis sometime in the 1990s. That man just told a Plymouth, Massachusetts jury that Clancy — who strangled her three children with exercise bands in January 2023 while, her defense argues, she was in a full psychotic break — knew exactly what she was doing. Closing arguments begin Thursday.
85 Witnesses, One Verdict Question
Testimony wrapped Wednesday in one of the most closely watched criminal trials in Massachusetts in years. According to CBS News, 85 witnesses took the stand over nearly five weeks, starting July 27. Prosecutors called three rebuttal witnesses before resting Wednesday afternoon, and jurors were sent home around 1 p.m. after the final witness finished.
The core facts of the case have never really been in dispute. Lindsay Clancy, 36, admits she strangled five-year-old Cora, three-year-old Dawson, and eight-month-old Callan in the basement of their Duxbury home while her then-husband Patrick was out running errands. She then attempted to kill herself. What the jury must decide is whether she is criminally responsible for any of it, or whether she was, at that moment, so far outside reality that the law cannot hold her accountable.
If convicted of first-degree murder, Clancy faces life in prison without the possibility of parole. If the jury finds her not criminally responsible, she goes to a state psychiatric hospital. CBS News notes that a straight not-guilty verdict is considered highly unlikely, given that her own defense attorney has conceded she killed the children.
The FBI's Guy on the Stand
Dr. Gregory Saathoff, a forensic psychiatrist and professor of emergency medicine who has worked with the FBI, began his testimony Tuesday and finished Wednesday morning. His core argument, as The Guardian reports, is that Clancy had control throughout the events of January 24, 2023 — methodical, organized, working through a sequence of decisions that no genuinely psychotic person could have managed.
Saathoff told the jury that Clancy visited a pediatrician's office that day, made lunch for her children, and built a snowman with them before the killings. "The activities of that day were controlled," he testified, according to The Guardian. "Throughout the day she was methodical and quite controlled and organized." He said the planning — sending Patrick Clancy to CVS, choosing the basement, choosing exercise bands — pointed toward criminal intent rather than psychotic break.
On the voice Clancy says she heard ordering her to kill the children, Saathoff was skeptical. Prosecutor Jennifer Sprague asked whether that voice told Clancy where, how, and in what order to kill each child. It didn't, Saathoff said. His conclusion: the ability to execute every step of this without instruction from the voice meant the voice wasn't actually directing anything. "It indicated that she had control," he testified, per CBS News.
The Part Where His Resume Became a Problem
Defense attorney Kevin Reddington went after Saathoff hard on cross. He noted, per CBS News, that Saathoff didn't interview Clancy until more than three years after the murders — May and June of this year. He walked through Saathoff's resume line by line, pointing out the man has written extensively about terrorism, not postpartum depression.
Then came the number that probably stuck with at least a few jurors. Saathoff acknowledged under cross-examination that the last time he treated a patient with postpartum psychosis was in the 1990s. Before that, the late 1980s, when he worked at a state hospital. Two patients total, across his entire career, both decades before this trial. The Guardian confirmed that exchange.
Reddington also pressed on Clancy's documented homicidal ideation, which she had voiced to her husband and mother. Saathoff characterized this as having been shared only with those two people. "Is that like talking about the Red Sox?" Reddington shot back, according to CBS News. "She's talking about homicidal ideation of her children." The courtroom, one assumes, did not find that funny.
The Hospital That Turned Her Away
One detail in Saathoff's testimony lands differently than the prosecution probably intended. The Guardian reports that jurors heard Clancy had gone to an emergency room roughly a month before the killings, complaining of lack of sleep and feeling numb. The Women and Infants Hospital in Rhode Island turned her away from a postpartum day program.
This is the detail that the supporters who rallied outside the courthouse last week — arguing the healthcare system failed Clancy — have been pointing to all along. She told doctors something was wrong. She was sent home.
Saathoff did acknowledge under cross that the mental health progression from postpartum depression to full psychosis can be rapid, and that psychosis can look a lot like regular depression from the outside — sleep problems, suicidal ideation, the whole picture. He also conceded that hormonal changes after birth can lead to "intrusive and hard-to-control thoughts and hard-to-control behavior." The prosecution's expert, in other words, spent part of his testimony explaining the very condition the defense says Clancy had.
The Moment the Prosecution's Own Expert Broke From the Script
At the close of cross-examination, Reddington read the prosecution's own opening statement back to Saathoff. Prosecutors had told jurors that Clancy "made a calculated decision" and "was a woman who no longer liked the life she thought she wanted" — that she chose to "manipulate her providers" and took "the alternate route" when she didn't get what she expected from the mental health system.
Reddington asked Saathoff if he endorsed that characterization. He did not. "I think that statement that you read really minimizes what she was going through," Saathoff told the jury, according to both The Guardian and CBS News.
The prosecution's final witness, on the prosecution's final day of testimony, just told the jury the prosecution's framing of the case was too harsh. That is not how you want your last day of testimony to end.
What Comes Next
Closing arguments are set for Thursday, with each side getting one hour. After that, Judge William Sullivan will give jury instructions and send the panel of 12 women and six men to deliberate.
One notable pretrial ruling: per CBS News, the judge denied the defense's request for a "Bowden instruction," which would have allowed jurors to consider whether an inadequate police investigation hurt the defense's ability to present its case. The judge did, however, include involuntary manslaughter as an option on the verdict form over prosecution objections. So the jury has a full range: not guilty, not guilty by reason of insanity, manslaughter, second-degree murder, or first-degree murder.
Defense attorney Reddington told reporters outside court that it's up to the jury to decide which charge, if any, fits. That's about as low-key as you can get going into closing arguments in a triple-child-murder trial.
The Dingo Take
The prosecution's expert just told the jury the prosecution's own framing "minimizes what she was going through." Let that sink in for a second. Prosecutors spent five weeks arguing Lindsay Clancy was a calculating woman who murdered her children because she'd grown bored with motherhood. Their final witness, when handed that argument directly, wouldn't sign off on it. That is a remarkable thing to watch happen in a courtroom, and it happened on the last day of testimony.
What makes this case genuinely hard is that both things can be true simultaneously. Clancy could have been in a serious, documented mental health crisis — turned away from a hospital, overmedicated, sleep-deprived, reporting homicidal thoughts to her family — and still, in some clinical sense, have understood that killing her children was wrong. That's the brutal narrowness of the insanity defense. It doesn't ask whether you were suffering. It asks whether you knew, in that specific moment, that what you were doing was a crime. A forensic psychiatrist who hasn't seen a postpartum psychosis patient since Bill Clinton's first term just told the jury the answer is yes.
Here's what doesn't go away after the verdict, whatever it is: a woman reported dark thoughts and homicidal ideation and was turned away from a hospital a month before her children died. The mental health system's failure in this story is not a defense strategy. It's a documented fact. The jury will decide what Lindsay Clancy is criminally responsible for. Nobody is deciding what the system is responsible for.
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