The forensic experts
Six retained mental-health and pathology experts testified: three for the defense, three for the Commonwealth in rebuttal, which under Massachusetts practice follows the defense's insanity case. Two more were listed and not called. [S9][S111]
Side by side
| Expert | Side | Contact with Clancy | Diagnosis | Opinion |
|---|---|---|---|---|
| Dr. Paul Zeizel, forensic psychologist | Defense | From 2023-02-04; 35 hours over 60 sessions | Bipolar disorder with postpartum psychosis | "unable to conform her behaviors to the rule of law, and she had no appreciation for the wrongfulness of her act" |
| Dr. Donald Condie, forensic psychiatrist | Defense | Records only | Symptoms consistent with bipolar disorder; providers missed psychosis | Care fell short: no blood or thyroid testing |
| Dr. Phillip Resnick, forensic psychiatrist | Defense | ~May 2023, 3 hours, plus parents | Severe depression, mild mania, bipolar spiraling to postpartum psychosis | "frankly psychotic"; "She was clearly psychotic on that day" |
| Dr. Elizabeth Laposata, forensic pathologist | Defense | Records | n/a | Mechanism of her injuries and of ligature strangulation |
| Dr. Avram Mack, forensic psychiatrist | Commonwealth | 2026-04-10 and 04-12, ~7,000 pages | Major depressive episode, anxiety; no mania, no psychosis | "retained the capacity required for having criminal responsibility" |
| Dr. Kirk Heilbrun, forensic psychologist | Commonwealth | April 2026, 3 days, ~180 hours | Bipolar II and anxiety; not postpartum psychosis | "criminally responsible on Jan. 24"; altruistic filicide |
| Dr. Gregory Saathoff, forensic psychiatrist | Commonwealth | 2026-05-29 and 06-04, by Zoom | Anxiety and bipolar disorder triggered by Zoloft-induced insomnia; not psychosis | "did have the capacity to appreciate right from wrong" |
| Dr. Margaret Spinelli | Defense, not called | Civil-suit evaluation | Bipolar disorder | Antidepressants can induce mania in bipolar illness |
| Dr. Margarita Abi Zeid Daou | Commonwealth, not called | Grand jury | n/a | Toxicology testimony to the grand jury |
Sources: [S9][S15][S17][S28][S29][S105][S106][S107][S111][S114][S118][S157]
The lists
The Commonwealth listed 182 potential witnesses and the defense 65 [S111]. The defense said in May it expected about 50 [S150]. Undisclosed defense experts were barred on 2026-07-20 [S143]. In the end the Commonwealth called 74, the defense 10 [S107].
Defense experts
Dr. Paul D. Zeizel DEF
Newton clinical and forensic psychologist. Hired by Reddington before the arraignment; reached her only because Judge Canavan waived hospital security on 2023-02-03 [S178]. Visited 02-04, let her call Patrick "out of human compassion"; the call went to voicemail; on 02-06 Patrick answered, on speaker. She said she loved him and that she heard "a male voice ordering her, telling her that she didn't have any choice but she had to kill her children and then kill herself" [S43][S105]. First evaluation 11 days after the killings; 35 hours over 60 sessions since [S118]. Testified she has not reported voices since, has not attempted self-harm, and "thinks of them every single day" [S15].
On the Commonwealth's coaching theory, put on the record by Reddington through Sgt. Lawlor [S38]: asked on cross whether he told her to lie, no; whether he suggested she claim voices, no. "She was not faking"; "presented as an honest citizen"; "They can function fine one day, and the next day they can be hearing voices" [S105][S118]. He has sat with the Clancy family in the courtroom throughout [S187].
From the 08-19 coverage [S235]. Zeizel gave both prongs: bipolar disorder with postpartum
psychosis, "unable to conform her behaviors to the rule of law," and "no appreciation for the
wrongfulness of her act." The concession that matters came on cross. Sprague: "Fair to say the
only time she specifically said she heard a male voice was when she recounts the events on Jan. 24
of 2023?" Zeizel agreed. Verified verbatim in transcripts/day16.txt, with the witness addressed as "Dr.
Zeizel" twice in the same cross, which independently confirms the Rev segment mislabelled him
[S218 verification][S251]. The transcript is stronger than the news paraphrase: it adds that the
voices she reported before January 24 were her own thoughts and that "she did not identify
whose voice it was." So the male voice is confined to her narrative of that one day, and everything
earlier was self-attributed, conceded by the defense's own examining expert.
Sprague also put confirmation bias to him, established that a 35-hour evaluation was unusual for his
practice, and identified discrepancies in appointment dates and medication records against his
testimony.
Dr. Donald Condie DEF
Harvard-trained; psychopharmacology; reviewed records, never evaluated her. Tufts's notes "somewhat sparse," "check boxes." Records showed she reported dissociation; providers raised doses rather than asking questions. No blood or thyroid testing. Records "very, very frequently" noted "passive suicidal ideation," consistent with bipolar disorder. Speculated she withheld hallucinations for fear of losing her children or her job. Cross: she never reported voices to prior psychiatrists until after the deaths. [S105][S118]
Dr. Phillip Resnick DEF
Yates, Dahmer, Unabomber, Anthony; about 80 filicide cases. Evaluated her about four months after for three hours, interviewed her parents, and used the Commonwealth's own testing to conclude she was not faking and tended to minimize symptoms. Command hallucination; "almost like she was a puppet and someone else was pulling the strings"; impulses "resisted until the command hallucination when she was overwhelmed"; "go to God." Cross by Sprague: his article "Faking It"; people ignore commands; Yates was committed five times and attempted suicide twice, Clancy acted on first hearing; the records show hope and a wheelchair marathon, not daily crying. [S9][S118]
From the Day 18 transcript [S221]. About a third of hallucinations are commands, most of them benign. He testified she had not only a command hallucination but a delusion of influence, the sense that her body had been taken over: she "did not feel any sense of control" and "felt that she had to obey the instructions she was receiving. It was a matter where she was just following the command rather than being able to make any decision to do it or not." He cited the severity of the suicide attempt as evidence of lost control. Sprague's cross used his own published line that "command auditory hallucinations are easy to fabricate"; the Yates comparison, five hospitalizations and two suicide attempts before Yates acted against Clancy acting immediately; her repeated denials of homicidal ideation to clinicians in December, which he attributed to fear the children would be removed; his inability to identify any "rational non-psychotic motive", answered with the point that the absence of an identifiable motive does not establish there was none; and Tewksbury records describing her as "clinically stable since admission" with no behavioral instability.
Resnick also spoke to the New Yorker, about husbands rather than about this case. Many men in Patrick Clancy's position testify on their wives' behalf, he said, but "the vast majority" also end up divorced. He recalled a bricklayer whose wife asphyxiated their daughter and newborn son, pleaded guilty to involuntary manslaughter, and came home under court supervision after a brief hospitalization; the couple stayed together and had another child. That interview, in a profile the Commonwealth was then subpoenaing, was published while he was a listed defense expert. [S204][S87]
Dr. Elizabeth Laposata DEF
Brown; former Rhode Island chief medical examiner; Karen Read trials; by video. Her fall: 13 to 14 feet, "freefall dive head first," a C1 Jefferson fracture and thoracic compression fractures. Cross: no skull fracture. Ligature strangulation: jugulars closed, unconsciousness in 5 to 10 seconds. Her purpose was the seriousness of the suicide attempt. [S105][S16][S143]
Dr. Margaret Spinelli, not called
Her civil work is now documented from the complaint itself rather than from reporting. She met Lindsay Clancy for five hours at Tewksbury on 2024-06-11 and spoke with her by telephone for three hours on 2024-09-06, and interviewed Patrick Clancy, Lindsay's sister Allison Olga, Lindsay's mother, and Susan Clancy. Diagnosis: Bipolar Disorder I, severe, with psychosis and anxious distress, with postpartum onset. Conclusion: "She did all that she could to obtain the appropriate treatment." Why the defense did not call her at the criminal trial remains open. [S206] A postpartum psychosis specialist who evaluated Clancy for the civil suit and diagnosed bipolar disorder. On the trial list; not called. Why is open. [S111][S157]
Commonwealth experts
Dr. Avram Mack PROS
Retained through Park Dietz and Associates [S189][S94]. Interviewed her in person 2026-04-10 and 04-12 at Tewksbury; reviewed nearly 7,000 pages. Diagnosis: major depressive episode and anxiety; "no example of behavior or thinking that corresponded with elements of mania"; "did not display psychotic features." Recorded her account of the voice and "Go to God" in "vivid detail"; the killings were "methodically... one by one, in a way that was organized." "Retained the capacity required for having criminal responsibility." [S9][S115][S118]
He used a four-week postpartum definition and did not consider postpartum conditions. [S96] Reddington: "postpartum means having a baby." [S108]
Cross. Three prior courts: Pennsylvania, "lacked forensic certification"; New Jersey, "an approach that fell below standard"; a Florida federal court, "unqualified." Mack: "I don't agree with your conceptualization." Challenged on the definition of an episiotomy; on taking a history from a sedated, suicidal, observed patient; "Are you making this up?"; "What are you smiling for? This is not funny, sir." Reddington raised Park Dietz's Law and Order testimony; the objection was sustained. Sullivan was visibly frustrated at Mack asking clarifying questions and talking over counsel. [S94][S95][S9][S108]
From the Day 19 transcript [S222]. This was approximately his third time testifying on criminal responsibility. He read the defense experts' reports before evaluating her, spoke with prosecutors by phone for 15 to 45 minutes, and interviewed her for four to five hours on the first day and about three on the second. His stated conclusion addresses the appreciation prong only: she "suffered from a major depressive episode" but "retained substantial capacity to appreciate the wrongfulness or criminality of her conduct." His own MMPI finding was that the K scale was valid with "no indication whatsoever of any malingering, exaggeration, or anything along those lines." Reddington put to him that Jollotta, Heilbrun, Resnick and Spinelli had all reached bipolar II, and named Commonwealth v. Torres (Pennsylvania) and Commonwealth v. Carter (New Jersey) as the courts that found him uncertified or below the standard of forensic practice. Mack put his forensic income at several hundred thousand a year. Tewksbury's own diagnosis was given as adjustment disorder, on Mack's recollection.
Resignation. He resigned as chief of psychiatry at Nemours Children's Health, Delaware, on Monday 2026-08-24, the day he finished testifying. Nemours: "Dr. Avram Mack is no longer employed by Nemours Children's Health, he resigned on Monday, August 24th"; no reason given. [S96][S97]
Dr. Kirk Heilbrun PROS
Drexel; Park Dietz and Associates; about 330 competency cases; $300 an hour, about 180 hours, roughly $54,000; needed a court order for access; interviewed Patrick and Susan Clancy, tried Ozga; acknowledged "retention bias." Diagnosis bipolar II. [S17][S106][S108]
His alternate theory. "Suicide combined with altruistic filicide": "killing your kids out of love... so that they wouldn't have to suffer." Having decided to die, "then she had to answer the question of what to do about the kids." "Most of the evidence that I saw supported the second one, and not the first." He called the psychosis theory "convenient" and the voice "contrived." [S108][S110]
The 18 minutes. "She only experienced it for the 18 minutes or so that it took to kill the children. To put it mildly, that would be a very, very unusual pattern." Never reported before; stopped when the killings stopped; inconsistent content across interviews; no attempt to drown it out; "I wasn't thinking about this at all"; her first words to Patrick were "I tried to kill myself." The December intrusive thoughts "were not auditory hallucinations." [S110][S108][S106]
He called the suicide attempt "highly lethal and very serious," and testified she remains on the highest suicide precautions: "she was at risk for suicide, (and) she remains at risk for suicide. She still is." [S108][S121]
Cross. No publications on postpartum illness; last evaluated postpartum mental health in 1982; "I would describe her as a very good mother, yes"; had not listened to the 911 tape and "would be surprised" she could only grunt; her false memory of cutting the window screen, on which see below; dissociation is a DSM-5 altered state; she feared others could hear her thoughts; on a genuine command hallucination, "That would depend on a number of things"; he never evaluated the treating care. His mortal-sin remark produced the second mistrial motion. [S2][S17][S109][S117]
The window screen. Clancy told Heilbrun that after cutting her wrists and neck she used the knife to cut the bedroom window screen. The screen was not cut. Heilbrun conceded that psychosis can affect the way information is processed and "could affect the accuracy of her memory." The detail therefore reaches the jury as a demonstrably false memory that gains her nothing, which is why Reddington kept it in play on cross. Note what the corpus still does not have: any testimony establishing whether a screen was in the window, its condition, or who examined it. The recorded physical evidence at that window is the open window, the knife, and the stains on the ledge and shingles. TEST Heilbrun [S213][S17]
Dr. Gregory Saathoff PROS
FBI Behavioral Analysis Unit senior psychiatrist, Quantico; UVA; unpaid by the DA; five to seven filicide patients; a 1987 paper on postpartum psychosis. Interviewed her by Zoom 2026-05-29 and 06-04; a qualification challenge was overruled. [S17][S107][S109]
Opinion: capacity to appreciate right from wrong; "she had control of the sequence"; the voice gave no method; "It's possible for a person to choose not to engage in that behavior"; "Committing the act is not curative of the voice. I've not ever seen that"; "Children are not puppets." A "misleading" history: hid anti-anxiety medication from Patrick early on; did not tell Tufts she had rejected Lamictal; "fake" at Christmas; inconsistent accounts of when the voice began; the chicken nuggets; could not explain how the children got to the basement. Conceded declining Lamictal for skin reactions was reasonable "in her mind," that 10 to 20 mg amitriptyline is a child's dose, and that the hotline offered resources. Called the suicide attempt "very serious": "The fact that the lacerations were not deep doesn't mean that she wasn't intending to kill herself." [S28][S17][S107]
From the Day 21 transcript [S224]. Her wording to him: "Kill the kids so you can kill yourself." His central argument was what the voice did not supply: not where, not how, not what to use, not the order, not where or how to harm herself. Each of those, on his reasoning, was her own decision, showing "control" and "decision-making" throughout.
He opined on both prongs. On appreciation, she "did have the capacity to appreciate right from wrong," supported by her denial of suicidal ideation to Tufts the day before, the ThreeV and CVS searching, concealment in the basement, and the callback in which she was "reassuring him." On volition, he opined she could "conform her behavior to the requirements of the law," evidenced by her controlled activities that day: the pediatrician visit, playing with the children, sending photographs. Conclusion: "It is my opinion within a reasonable degree of medical certainty that Ms. Clancy was criminally responsible." Note what that volitional evidence is made of: conduct from the morning and afternoon, hours before the episode she describes. This wiki's observation, not a cross-examination point recorded in the corpus.
Cross also produced a resume problem: he had claimed Bureau of Prisons work from 2019 to the present against two or three actual evaluations, and his university received the fee while he did not know his rate or the total [S224].
Cross: a three-year delay; "written a lot about terrorism"; last treated postpartum psychosis in the 1990s; the crushed-pill foundation; "Do you think for one minute when you're trying to put her in jail for her life that she wants to talk to you?" [S107]
Dr. Margarita Abi Zeid Daou, not called
UMass Chan forensic psychiatrist; testified to the grand jury on the seven-drug toxicology; listed; the three rebuttal witnesses were Mack, Heilbrun and Saathoff. [S111][S114][S107]
The voice, version by version
Assembled 2026-09-05 from the transcript segments. This closes the open question of what the inconsistencies actually were. Ordered by when she said it, not by when it was reported.
| When and to whom | The account |
|---|---|
| 2023-01-31, Chaplain Sheila Cavanaugh, at Brigham and Women's, the day after extubation | A male voice, persistent, commanding that "if she did not follow the command, neither she nor her children would be safe." In the same conversation she said "I am so glad my children are safe" [S220] |
| At Brigham, as later recounted by Heilbrun | The voice commanded her to kill herself so that she could kill the children, and "the children would suffer without her". Verified against the transcript, which corrects an earlier reading of "a concern that they would suffer" [S218 verification][S223] |
| 2023-02-06, to Patrick by speakerphone, Zeizel present | A male voice telling her she had no choice, she had to kill her children and then kill herself [S43][S105] |
| 2026, to Mack | "You should kill the kids, this is your last chance so that you can kill yourself" [S9] |
| 2026, to Heilbrun | "You have to kill the kids so you can kill yourself." Heilbrun testified this differed from her earlier hospital statement [S223] |
| 2026, to Saathoff | "Kill the kids so you can kill yourself" [S224] |
The inconsistency Heilbrun actually identified. Verified verbatim against the ASR transcript,
transcripts/day20.txt, with the witness addressed as Dr. Heilbrun in the same examination [S218
verification]. He called two of her statements mutually exclusive: at Brigham the voice commanded her to kill herself so she could kill the children, with
a concern they would suffer; in his interviews she denied the voice mentioned the children
suffering [S223].
What the sequence shows, and this paragraph is this wiki's own reasoning, not testimony. Two things move across three years. The order inverts, from kill herself so she could kill them to kill them so she could kill herself. And the suffering-prevention element drops out. The two earliest accounts, Cavanaugh's on 01-31 and the Brigham statement, both carry a protective framing; the three 2026 accounts to retained examiners are bare commands with no protective content. The drift runs from an account containing a reason she acted toward one containing only compulsion, which is the self-serving direction.
The counter, on the same reasoning. Protective content in the earliest accounts is what Heilbrun's own alternative theory predicts, and altruistic filicide is not itself a finding of sanity. In Resnick's classification, which he originated, the altruistic type is the one most often accompanied by depression and psychosis. A mother who kills believing she is sparing her children suffering can be psychotic in that belief. The content of the earliest accounts therefore fits both theories, and what separates them is not the motive but whether the belief was delusional.
Park Dietz and Associates
Both Mack and Heilbrun are the firm's experts [S94][S111]. Dietz's testimony at Yates's first trial about a nonexistent Law and Order episode voided her conviction; she was found insane at retrial; her lawyer called the testimony "perjured." Reddington put it to Mack; the objection was sustained; the jury heard the question. Parnham: "That's got to be a whole issue that can only help the defense." [S94][S95]
Treating clinicians who were not retained
- Dr. Sejal Shah, Brigham and Women's: 2023-01-30, no SI or HI, no hallucinations that day, "organized," "goal-directed"; the healthcare proxy change; cross: an "honest" patient, and a person can communicate and plan while psychotic. [S57]
- Dr. Jhilam Biswas: 2023-01-26, by pen and paper; "horrified"; asked for a lawyer; no psychosis. [S57]
- Dr. Alia Goodheart, McLean: MDD severe without psychotic features; "I haven't seen any" postpartum psychosis patients. [S100]
- Tufts, Jollotta, Paul: each saw no psychosis or mania; each is in 06-medication-psychiatric.md.
Where they actually disagreed
Not on illness. Sprague conceded it in closing [S8]. The disagreements:
- Diagnosis. Postpartum psychosis on a bipolar base (Zeizel, Resnick, Spinelli) versus bipolar II without psychosis (Heilbrun), bipolar with Zoloft-triggered insomnia (Saathoff), or major depression alone (Mack). Note that four of the six diagnosed bipolar disorder, and that Jollotta suspected it on 2022-12-06. [S102]
- The postpartum window. Mack's four weeks excludes an eight-month-old's mother by definition; Heilbrun had never published on the subject; Saathoff last treated it in the 1990s. [S96][S17][S107]
- Whether the voice was real. Every expert recorded her reporting it. The Commonwealth: novel, brief, self-terminating, inconsistent, and possibly coached. The defense: the culmination of weeks of resisted impulses. Both civil complaints quote medical records describing it. [S38][S156]
- What the sequence proves. Decisions, or a body taken over. Shah's concession, that a psychotic person can communicate and plan, is the hinge. [S57]
- The suicide attempt. Two Commonwealth experts called it "highly lethal and very serious" and "very serious," against the Commonwealth's own blood-pattern and "lowered herself" framing. [S108][S107][S33][S168]
- Credibility. By the end, one Commonwealth expert had resigned his hospital post mid-testimony and been shown to have been found unqualified by three courts, and both were tied to the firm whose principal's false testimony freed Andrea Yates. NewsNation's frame, "adversarial allegiance," applies to all six. [S97][S94][S118]
An outside voice, not retained by either side
Dr. Sara West, a forensic psychiatrist who has evaluated more than a dozen women accused of killing their children, was interviewed by the New Yorker in 2024 and has no role in this case. Her observation is the most economical statement of what the six retained experts were actually fighting over: severe depression tends to involve "an element of distorted reality," and it is "not always technically psychosis, but it's also not not psychosis." She also notes that postpartum psychosis has no DSM category of its own, which is why the diagnostic window itself was arguable. [S204]
The treating psychiatrist's two concessions, verbatim
Added 2026-09-06 from the day 5 transcript [S307, ASR, unverified]. The corpus held both in summary from [S57]. The exchanges themselves had not been recorded, and one of them answers the Commonwealth's central argument.
These are not retained experts. Dr. Sejal Shah treated Clancy at Brigham and Women's for about a month and was called by the Commonwealth.
She did not exaggerate
"She didn't go off and try to exaggerate to you and say, 'I'm seeing visions and I'm hearing voices and I'm suicidally ideated and I'm homicidally ideated.' She didn't say any of those things to you, did she?" "No." "She actually denied them, right?" "Correct." "So this is not, in your opinion, someone who was trying to exaggerate her conditions for some legal reason." "No."
TEST Shah, via ASR [S307, ASR, unverified][S57]
A treating psychiatrist called by the Commonwealth agreed Clancy did not exaggerate symptoms for legal advantage and affirmatively denied the symptoms a malingerer would claim. That bears on the coached-hallucination theory [S38].
Psychosis is compatible with planning
"You know that people can communicate and plan and act on plans even if they're in the middle of a psychosis, right?" "Yes." "You don't have to be drooling and stumbling and unable to walk and talk to be in a psychosis, do you?" "No."
TEST Shah, via ASR [S307, ASR, unverified][S57]
This is the clinical answer to the Commonwealth's central argument. Its case rested on organised, goal-directed conduct: the timing, sending Patrick out, taking the 5:34 pm call, not calling 911. A Commonwealth treating witness agreed none of that is inconsistent with psychosis.
It does not resolve the case. Compatibility is not evidence that she was psychotic, and the Commonwealth's experts diagnosed no psychosis at all. But it removes the inference the conduct evidence was being asked to carry.
The functionality argument, and both sides' answers to it
Added 2026-09-06. The Commonwealth's case rested on organised, goal-directed conduct: the timing, sending Patrick out, taking the 5:34 pm call, not calling 911 [S302][S305]. Two witnesses answered that proposition, one from each side, and the corpus now holds both.
A Commonwealth treating psychiatrist, on cross [S307, ASR, unverified][S57]:
"You know that people can communicate and plan and act on plans even if they're in the middle of a psychosis, right?" "Yes." "You don't have to be drooling and stumbling and unable to walk and talk to be in a psychosis, do you?" "No."
A defense expert, on direct, taking the specific acts of 2023-01-24 in turn [S314, ASR, unverified]:
| Conduct on 2023-01-24 | Answer |
|---|---|
| Looking up drugs, interactions and side effects on a computer | Compatible with psychosis: "Yes" |
| Building a snowman in the backyard with two of her children | Confirmed |
| Googling directions to the ThreeV restaurant | A person in that state can do it "easily" |
| Texting her husband to collect a prescribed stool softener for a child | "Yes. It does not interfere with that" |
And the pivot: asked whether the voices or intrusive thoughts abated on 2023-01-24, "No," and whether they continued, "Yes."
What this settles and what it does not. Both sides' witnesses agree that psychosis does not remove the capacity to plan, communicate and perform ordinary tasks. That removes the inference the conduct evidence was being asked to carry. It does not establish that she was psychotic, which the Commonwealth's three retained experts denied outright.
HANDOFF.md lists this as the first of the five questions the case turns on, noting it was conceded
by a Commonwealth treating witness, never resolved at trial, and clinical rather than legal. It is
now sourced from both directions.
Malingering, answered from both sides
Added 2026-09-06 [S315, ASR, unverified]. Three witnesses across both sides addressed whether Clancy faked or exaggerated her symptoms, and none supported it.
Resnick, for the defense, is a specialist in the question: "That has been a major interest. I've actually written 46 articles or book chapters in this area. The first was 1984." On the psychological testing: "It did not suggest any evidence of faking symptoms." On the K scale, the lie scale: "That was not elevated."
Corrected 2026-09-06: the test was the Commonwealth's [S318, ASR, unverified]. On direct, Resnick was asked about "a test that he administered for the government, called the MMPI," meaning Heilbrun's. Asked what the results showed, "Was she faking? Was she lying? Or was she telling the truth?": "The results showed no evidence for faking." The no-faking finding therefore comes from the prosecution's own psychological testing, reported by the defense expert who reviewed it. That is materially stronger than a defense instrument would be.
A Commonwealth retained expert, on cross, about her account of going out the window:
"Did she tell you that she slashed the screen with the knife before she went out the window?" "Yes, that's what she told me." "But the screen wasn't slashed, was it?" "Do you think she was malingering and lying to you at that point?" "No."
He had agreed immediately before that a person in psychosis can misremember, and that a false memory is possible.
A Commonwealth treating psychiatrist, already in this file: she did not exaggerate for legal advantage and affirmatively denied the symptoms a malingerer would claim [S307][S57].
What that settles. She gave the Commonwealth's own expert an account that was demonstrably false and that helped her in no way, and he declined to call it a lie. Whatever remains contested about her diagnosis, the record does not support a theory that she faked symptoms, and no witness in this corpus advances one.
The altruistic filicide reasoning
The corpus records Heilbrun's conclusion and the label [S17][S106]. The reasoning is less damning than the label sounds [S315, ASR, unverified]:
"They're in pain, they're suffering, and they're trying to put a stop to it. And I think when she decided at some point that she was going to put a stop to it, then she had to answer the question of what to do about the kids, and she didn't want to leave them, and she was convinced that they would suffer without her."
On the evidence: in the course of strangling each child she said "Go to God, baby. Go to God," which the witness read as "her expectation that she and the children would be together in heaven with God."
This is the Commonwealth's expert describing a motive that is not malice: a woman intending to die who could not bear to leave her children and expected reunion. It supports his conclusion of criminal responsibility, and it is worth reading in full before that conclusion is quoted.
Peritraumatic dissociation: the Commonwealth's answer to the dissociative symptoms
Added 2026-09-06 from day 20 [S316, ASR, unverified]. The corpus did not hold this, and it is the Commonwealth's explanation for the part of her account it could not deny she reported.
"You kind of feel that things are unreal, or that it's not you. It's like you're watching yourself go through actions... if you talk about it, it sounds like it could be psychotic, but it's actually more likely to be a recognised aspect of going through a traumatic situation that many people going through something like that would experience."
Asked what the traumatic circumstances were, the witness gave, as an example, the strangling of the children, "because that was very traumatic for her." Asked whether she showed signs of it: "She did. She talked about feeling like it wasn't her, like she was watching."
This reframes the most-quoted element of the defense account. "It didn't feel like me" becomes, on this reading, a normal trauma response rather than psychotic depersonalisation, where the trauma is the act itself.
The postpartum window
PROS Mack, via ASR [S316, ASR, unverified]. Callan was born in May 2022 and the killings were
in January 2023, roughly eight months later.
| Authority | Window |
|---|---|
| DSM | Four weeks |
| Proposed DSM-5-TR entry for postpartum psychosis | Six weeks |
| ICD, per counsel's figure, not confirmed by the witness | ~12 weeks |
Asked whether postpartum conditions can occur up to a year or longer: "I don't know, but I am telling you what the DSM says." He described postpartum psychosis as "a proposed diagnostic entity," and gave his own conclusion as "major depressive episodes."
A McLean clinician made the same point unprompted in the corpus already: "different organizations or agencies assign postpartum a different length of time" [S308]. Two witnesses on opposite sides agree the definition is unsettled, and eight months is outside every figure either named.
On SSRIs in bipolar disorder, which is the Zoloft theory: "Traditionally... there is a need to avoid using SSRI medications. However, that has been reduced in terms of our worry about that over time."
The case as the Commonwealth's expert framed it
"The two options that you considered, that this was psychosis with command hallucinations or suicide with altruistic filicide." "Those were the two possibilities that seem to have some evidence."
PROS Heilbrun, via ASR [S316, ASR, unverified]
The clearest statement in this corpus of what the trial was about, and it comes from the Commonwealth: not guilt against innocence, and not illness against health, but two competing accounts of the same conceded acts.
Heilbrun's conclusion, in full
Added 2026-09-06 from day 20 [S318, ASR, unverified]. The corpus recorded the conclusion, "criminally responsible on Jan. 24" [S17][S106]. The reasoning was not held.
"She demonstrated such self-control throughout the day on January 24th. And her actions between 5:15 and 6:00 p.m. that afternoon were influenced by her depression and her hopelessness about her life and the desire to end the pain she had experienced since October. Although this depression and hopelessness influenced her decisions, she retained control over whether, when, and how she carried it out, and the inclusion of her children."
"My clinical opinion, since I'm not the decision maker here, is that she was criminally responsible on January 24th."
Three things follow. The conclusion is grounded in depression and hopelessness, not in an absence of illness. It is expressly limited to a clinical opinion, with the witness disclaiming the legal question. And the operative finding is retained control, not absence of symptoms.
Choosing between the two possibilities he had identified: "The evidence much more strongly, in my opinion, supported the second explanation, which was the serious suicide attempt accompanied by killing the children out of love."
The Commonwealth's own expert called the suicide attempt serious, which 01-timeline-night-of.md records as among the most contested questions in the case, and characterised the killings as done out of love. "Altruistic filicide" in this record is not a defense euphemism; it is the Commonwealth expert's own reading.
On her presentation across three interview days: "quite attuned to the question" with "a very good memory for dates and medications and dosages and times" on days one and two, but on the third day, discussing "mental state at the time of the offense," she "appeared to me much more cautious and guarded." He found her guarded on the offense specifically and still declined, on day 21, to call her account of the screen a lie [S315].
On the evaluation interval [S318, ASR, unverified]: Resnick testified the Commonwealth's experts "did their evaluation about 3 years after the crime" while he saw her "4 months after the crime." Zeizel was earlier still, from 2023-02-04 [S9].