A Massachusetts judge declared a mistrial Friday in the trial of Lindsay Clancy after a 12-person jury reported it was hopelessly deadlocked following seven days of deliberations.

Clancy, a former nurse accused of strangling her three young children at her Duxbury home in January 2023, faced charges including first-degree murder. The jury struggled to reach a consensus on her criminal culpability, remaining divided on whether she understood the wrongfulness of her actions or was legally insane at the time of the killings.

Throughout the multi-week trial, prosecutors presented evidence arguing Clancy meticulously planned the murders and maintained the mental capacity to distinguish right from wrong. The defense contended that Clancy suffered from severe postpartum psychosis and was suffering from a profound mental illness exacerbated by overmedication.

Superior Court Judge William Sullivan instructed jurors to continue deliberating multiple times throughout the week after they repeatedly signaled they could not reach a unanimous verdict. On Friday, a final note from the foreperson indicated the jury remained split, leading Judge Sullivan to discharge the panel.

Clancy will remain in custody under psychiatric care at Tewksbury State Hospital as the Plymouth County District Attorney’s Office evaluates whether to retry the case or seek an alternative resolution with the defense.