In a trial that has rocked social media, a jury will be left to decide if Lindsay Clancy ― the 35-year-old labor and delivery nurse from Massachusetts who prosecutors say killed her three young children in January 2023 before attempting to kill herself — if she knew what she was doing or was suffering from postpartum psychosis. The trial has been ongoing for weeks, with doctors, nurses, experts and Lindsay Clancy’s ex-husband, Patrick Clancy, all testifying. If convicted of three counts of first-degree murder, Lindsay Clancy faces life in prison without parole. If the jury finds her lacking criminal responsibility, she will be committed to a state mental health facility.The trial is in its third week and is expected to last two to four more weeks. On Wednesday, Lindsay Clancy broke down in sobs while medical examiner Dr. Renee Stonebridge testified on the injuries the Clancy children suffered.Lindsay Clancy has pleaded not guilty. She and her defense aren’t arguing she didn’t kill her children; they’re arguing that she shouldn’t be held criminally responsible for the murders because she was struggling with postpartum psychosis — something that affects 1 to 2 per 1,000 women — and extreme mental illness, something she was desperately trying to treat before it was too late. Prosecutors, however, allege that while she struggled with her mental health, she knew what she was doing when she “deliberately and meticulously” killed her children.“This is a woman who acted intentionally, rationally, and swiftly to accomplish a very specific goal — to kill,” Plymouth County Assistant District Attorney Shanan Buckingham said last Monday during her opening statements, according to CNN.Prosecutors allege Lindsay Clancy “deliberately and meticulously” killed her three children. Patrick Clancy testified that his then-wife’s mental health struggles started about a month before their three children were killed.After giving birth to her third child in 2022, Lindsay Clancy saw a doctor for treatment for postpartum depression and anxiety. Over the course of four months, she was prescribed 13 different medications, and a few weeks before the deaths of her children, she was admitted to a hospital for five days for psychiatric care. Rebecca Jollotta, a psychiatric nurse practitioner with the South Shore perinatal behavioral health clinic, testified Tuesday that before the killings, she helped Lindsay Clancy find a prescription plan for her insomnia and anxiety. After prescribing her medication, Lindsay Clancy asked to change her treatment protocol, telling Jollotta she was having “very intrusive thoughts that” she’d “never had before.”In December 2022, his wife experienced a “big spiral,” Patrick Clancy said.Patrick Clancy, who remarried earlier this year, testified that his then-wife was a “very dedicated” mother until December 2022, when she experienced a “big spiral” and “described thoughts of hurting the kids or them having some sort of ailment.” However, he said he wasn’t worried for their safety because she didn’t show “any intention” of hurting them, he testified.But the next month, when he went to run some errands, he returned to a quiet home. He called out for his family and then discovered Lindsay lying face-up in the backyard right below their second-story bedroom window. He then discovered his three children in the basement lying still with exercise bands around their necks. The two older children, 5-year-old Cora and 3-year-old Dawson, were pronounced dead at the hospital, and 8-month-old Callan was pronounced dead three days later. A week later, Lindsay Clancy called her husband from the hospital, Patrick Clancy testified. “She didn’t talk about our kids. She talked about what she went through,” Patrick Clancy testified, according to CNN. “She said she heard a man’s voice telling her that if she didn’t do it now, she would lose her chance — or something like that.”Lindsay Clancy, who is paralyzed from the waist down following her suicide attempt, has been in court and sobbed multiple times while others testified, including when the 911 call her husband made was played and when the medical examiner described the injuries her children sustained after they were strangled.A few days after the killings, the Clancy family started a GoFundMe to help Patrick Clancy pay for medical bills and funeral costs. On the GoFundMe, he posted an update, asking the public to forgive Lindsay Clancy. “I want to ask all of you that you find it deep within yourselves to forgive Lindsay, as I have,” Patrick Clancy wrote. “The real Lindsay was generously loving and caring towards everyone — me, our kids, family, friends, and her patients. The very fibers of her soul are loving. All I wish for her now is that she can somehow find peace.”If you or someone you know needs help, call or text 988 or chat 988lifeline.org for mental health support. Additionally, you can find local mental health and crisis resources at dontcallthepolice.com. Outside of the U.S., please visit the International Association for Suicide Prevention.