Lindsay Clancy's trial, which began on July 30, 2026, focused on her psychiatric care before the tragic killing of her three children. Testimony traced a path spanning months leading up to a final virtual appointment on January 23, 2023, where Clancy presented as depressed and anxious but denied hearing voices that supposedly commanded her to take her children's lives. The defense claims various healthcare providers failed to accurately diagnose Clancy and prescribed a series of medications exacerbating her condition. Clancy, a former labor and delivery nurse, stands accused of intentionally killing her children aged 8 months to 5 years in their suburban home in Duxbury, Massachusetts, before jumping out of a second-story window. The prosecution alleges she planned the attack after sending her husband on errands, while the defense argues her mental illness renders her unfit for criminal responsibility. Clancy has pleaded not guilty to murder charges, and her attorneys claim she suffered from bipolar disorder and postpartum psychosis. Her psychiatric treatment forms a critical aspect of both the prosecution's case on intentional killing and the defense's argument on mental state at the time of the crime.