Mother on trial for killing three children; postpartum psychosis defense clashes with prosecution

Lindsay Clancy was 32 years old and known as someone who kept her life in order—sensible, organized, rarely idle. Her husband Patrick remembered her that way. Then she gave birth to her third child, Callan, on May 26, 2022, and something shifted.

Within days, the changes were visible. Her sister watched her impulsively sign up for a multi-level marketing scheme. A week after delivery, she was waking at 4 in the morning and exercising for hours. By the twelve-week mark, she had swung the other direction entirely—anxious, depressed, sleeping only three hours a day. Her parents came to help with Callan and her two older children, five-year-old Cora and three-year-old Dawson. She booked a psychiatric appointment. The medications began: Zoloft first, then Ativan and Benadryl when that caused a severe reaction. By November, she told a nurse she was "very frustrated and scared." More prescriptions followed—Prozac, Ambien, Remeron, Klonopin. In a diary read aloud in court, she wrote of feeling obsessed with the baby's sleep, of "crazy brain fog," of insomnia and anxiety spiraling into depression. She told her doctors she could no longer tell what was real.

On January 24, 2023, Patrick took their daughter to a doctor's appointment that morning, then texted pictures of the children to his wife throughout the day. "She seemed happy," he would later tell the courtroom. "It was one of her best days." That afternoon, Lindsay suggested ordering takeaway from a restaurant further away than usual. Patrick left to pick it up, stopping at a pharmacy for medication. When he called to ask about the brand, the conversation was brief. When he returned home, the house was silent. No one answered when he called out. Upstairs, the bedroom door was locked. When he forced it open, he saw blood everywhere. Lindsay was in the backyard beneath the window, having jumped. On the emergency call played in court, he could be heard urging her to stay awake, to look at him. Then he ran inside to find his children. Cora and Dawson were already dead. Callan, eight months old, would die in the hospital days later.

There is no dispute about what happened. The question tearing through the courtroom is why. Lindsay's defense argues she was a loving mother consumed by postpartum psychosis, a rare and severe condition that affects roughly one in a thousand women after birth. Her lawyer, Kevin Reddington, points to the cascade of prescriptions—thirteen different psychiatric medications issued by psychiatrists, nurse practitioners, and emergency doctors, more than thirty prescriptions in five months. He argues she spiraled out of control on medications that were meant to help her. On the day of the killings, Lindsay has said she heard a voice: "This is your last chance. Kill the children so you can kill yourself." Reddington told jurors: "This is a woman that did not get the medication, did not get the medical treatment that she so deserved. This is a woman that was suffering from psychosis."

The prosecution sees it differently. Assistant District Attorney Shanan Buckingham told the jury that Lindsay was "not in the throes of postpartum psychosis" when she killed her children. She was, Buckingham argued, a "classic overachiever"—extremely controlling, meticulous, manipulative. "This was a woman who acted intentionally, rationally and swiftly to accomplish a very specific goal, to kill," Buckingham said. She painted a portrait not of a woman in psychosis but of a woman who no longer wanted the life she thought she wanted.

Postpartum psychosis is rare enough that many people have never heard of it. It strikes about one in a thousand new mothers, compared to postpartum depression, which affects one in seven. It typically emerges in the first days or weeks after birth, and women with a history of bipolar disorder face higher risk. The condition can produce hallucinations and delusions—seeing things that aren't there, hearing voices—but here is the complication that matters: these symptoms don't necessarily run continuously. They wax and wane. A woman might seem fine one moment and be in the grip of psychosis the next. Nicole Highet, founder of the Centre of Perinatal Excellence, explained to the ABC that this unpredictability is one of the defining features of the condition, and one of the reasons it is so difficult to diagnose and treat.

The trial is in its third week and expected to last eight weeks. Jurors have heard from psychiatrists, doctors, first responders, friends, and family. Those who knew Lindsay have described her unanimously as a loving mother whose mental health was deteriorating. None said they saw signs of psychosis. None believed she was a danger to herself or her children before that day. If convicted of murder, she faces life in prison. She is being held in a psychiatric hospital. Patrick filed for divorce in the months after the children's deaths. Both he and Lindsay have filed separate civil malpractice lawsuits against the medical professionals and facilities that treated her. His lawsuit, filed on behalf of his three dead children, alleges that the "bevy of diverse and powerful medications" they prescribed, coupled with their failure to monitor her properly, caused her mental health to deteriorate catastrophically. The question of whether that deterioration was the cause or merely the context remains the central argument of her trial.