Lindsay Clancy, a 36-year-old nurse, is charged with three counts of murder for the strangulation of her children Cora, Dawson, and Callan on January 24, 2023, in Duxbury, Massachusetts. ^[1] On September 1, 2026, the jury in the trial of Lindsay Clancy, accused of killing her three children in 2023, informed Judge William Sullivan that they failed to reach a unanimous verdict after more than 17 hours of deliberation. ^[2] The jury in the Lindsay Clancy murder trial in Plymouth, Massachusetts announced on Tuesday that they were deadlocked after four days of deliberation. ^[3] Clancy pleaded not guilty by reason of insanity, claiming she suffered from postpartum psychosis that prevented her from understanding the nature and gravity of her actions. ^[4] Prosecutors argued that Clancy knew what she was doing and made a conscious decision to kill her children before attempting suicide, noting her training as a nurse and her knowledge of the medications she was taking. ^[5] Judge William Sullivan asked the jury to deliberate once more, marking his second request for deliberation in the case. ^[6] Massachusetts law states that a judge can declare a mistrial only if the jury remains deadlocked after being asked to deliberate three times. ^[7] The jury is currently deadlocked over whether Lindsay Clancy is criminally responsible for killing her three children. ^[8] Defense attorney Kevin Reddington has argued that Clancy was experiencing postpartum psychosis when she killed the children and asked jurors to find her not guilty by reason of insanity. ^[9] Judge William Sullivan, presiding over the trial in Plymouth, Massachusetts, instructed the jury to continue deliberating after receiving the note indicating a lack of unanimous decision. ^[10]