The trial of Lindsay Clancy ended in a mistrial on 4 September after jurors could not reach a unanimous verdict following nearly 40 hours of deliberation. Clancy, aged 36, had admitted to strangling her three children—Cora (five), Dawson (three) and Callan (eight months)—at their Massachusetts home before jumping from a second-floor window. The case was significant because it centred on whether she was criminally responsible or acted under postpartum psychosis, a rare and serious mental health condition.

The jury was ultimately split 11-1, with eleven jurors believing Clancy should be found not guilty by reason of insanity, whilst the sole holdout, Michael Desronvil, maintained she was guilty of first-degree murder. Desronvil stated he had "no doubts" that she intentionally planned the killings based on the evidence presented. Other jurors reported spending days attempting to persuade him to change his mind, but he refused to provide logical reasoning for his position, leaving several jurors believing Clancy had not received a fair trial. The defence had presented evidence that Clancy was on multiple medications and had sought emergency help and suicide hotline support before the killings, arguing this demonstrated psychosis.