The murder trial of Lindsay Clancy was declared a mistrial on Friday after a jury was unable to reach a unanimous verdict following nearly 40 hours of deliberations. Judge William Sullivan made the declaration after a justice of the Massachusetts Supreme Judicial Court denied an emergency stay request filed by Clancy's defense.

The deliberations spanned seven days, concluding a trial that heard over five weeks of testimony. The central question before the jury was whether Clancy was suffering from postpartum psychosis when she strangled her three young children, and if this condition should absolve her of criminal liability for their deaths.

Clancy, 36, faces three counts of first-degree murder in connection with the deaths of her 5-year-old daughter Cora, 3-year-old son Dawson, and infant son Callan. The tragic events occurred on January 24, 2023, at the family's home in Duxbury, Massachusetts. State prosecutors have indicated that Clancy attempted suicide on the night her children died, an act that left her paralyzed and in a wheelchair.

Following the mistrial, Clancy will remain under state custody and will return to a hospital for continued mental health treatment. Judge Sullivan has scheduled a hearing for September 29 to determine the next steps in the case. Legal analysts suggest the prosecution faces a decision: pursue a retrial in the near future or explore plea negotiations.

Plymouth County District Attorney Timothy Cruz has not yet announced whether his office will seek a new trial. Legal experts Peter Elikann and Brian Buckmire noted that plea bargains are a common outcome after a hung jury. Elikann explained that prosecutors might offer to reduce charges to lesser offenses in exchange for a guilty plea to a less severe crime.

However, Buckmire also pointed out that prosecutors may be disinclined to reduce any charges, given the gravity of the offenses. The defense's attempt to secure an emergency stay, which was ultimately denied, highlighted their efforts to prevent a mistrial and potentially influence the proceedings.

Clancy's defense has centered on the argument that she was experiencing postpartum psychosis, a severe mental health condition. This defense aims to address her criminal responsibility for the deaths. The prosecution's stance on her liability has been a key focus throughout the trial.

The case has drawn significant public attention, with ABC News planning a special edition of "20/20" to cover the trial's proceedings. The outcome of the prosecution's decision regarding a retrial or plea negotiations will shape the ongoing legal process for Lindsay Clancy.