The murder trial of Lindsay Clancy, accused of strangling her three young children, has focused on her online search history in the weeks preceding the January 2023 deaths. Analysis of her phone data presented in court on Thursday revealed searches related to hallucinations, psychosis, and the side effects of medications she was prescribed.

In late December 2022, Clancy reportedly looked up suicide methods, bipolar disorder, and insomnia. In January 2023, her searches included information on postpartum depression. Earlier, in October 2022, she had written a note expressing doubts about her parenting, including reconsidering plans for a fourth child and second-guessing her decision to stop breastfeeding her infant son.

Clancy's defense team asserts that she was suffering from bipolar disorder and postpartum psychosis, a rare condition that can cause a woman to lose touch with reality after childbirth. A forensic psychiatrist diagnosed her with these conditions following the killings. The former labor and delivery nurse, 36, has pleaded not guilty to murder charges in the deaths of her children, Callan, Dawson, and Cora Clancy.

In her October note, Clancy expressed concern about not being able to give her youngest child the same attention as her older two, ages 3 and 5. "I’m terrified of something happening to my kids or doing something wrong to mess up their development," the note stated. "Our generation is inundated with information about every aspect of parenting. ... It’s insane. For the last five years, I’ve just filled my mind with all things parenting and it’s just unhealthy."

The children's father, Patrick Clancy, found them in the basement of the family's Duxbury home. Lindsay Clancy was found in the yard after jumping from a second-story window and remains paralyzed from the waist down.

Text messages between Lindsay and Patrick Clancy, presented by Massachusetts State Police cellphone forensics expert Tim Chiappini, showed them managing daily routines on the day of the killings. Patrick Clancy sent a text calling her a "good mamma," to which she responded with a heart and smile emoji.

Clancy's attorneys acknowledge that she killed the children but argue she should not be held criminally responsible due to mental illness, contending she heard voices commanding her to kill her children and herself. Prosecutors, however, argue that Clancy intentionally killed the children, presenting a scenario where she sent her husband out for takeout and to the pharmacy on Jan. 24, 2023, before strangling the children with exercise bands.

Prosecutor Shanan Buckingham urged jurors to focus on the facts of the case and not view the trial as a "public debate about women’s mental health and how the medical system treats women."

If convicted of murder, Clancy faces a potential sentence of life in prison without parole. If found not guilty by reason of lack of criminal responsibility, she would be committed to a state mental health facility.

Clancy's attorneys claim she actively sought help, consulting multiple providers, trying various prescribed medications, contacting a suicide hotline, visiting an emergency room, and attempting to enter a full-day treatment program for postpartum mental health issues. She also voluntarily checked herself into a psychiatric hospital for several days. Despite these efforts, her condition reportedly worsened on a regimen of psychiatric medications, some of which her attorneys and family state were problematic for bipolar patients.

Prosecutors intend to demonstrate that Clancy had access to mental health services but sometimes disregarded medical advice and discontinued certain medications. Medical providers who testified stated she never expressed a plan to harm herself or her children and did not exhibit signs of psychosis or mania, although she did mention having suicidal thoughts.