A fresh legal battle is now unfolding in the Lindsay Clancy case, and it centers not on new forensic evidence from the crime scene — but on the lone juror whose vote prevented a unanimous verdict.

Clancy’s defense has asked a Massachusetts judge to investigate Michael Desronvil, the only juror who voted to convict her after the six-week trial. Her attorneys allege that Desronvil may have improperly used a cellphone during deliberations and may have provided inaccurate information during jury selection. Desronvil has denied wrongdoing, and his attorney has strongly rejected the accusations.

The allegation is especially important because the jury reportedly split 11–1. Eleven jurors favored finding Clancy not criminally responsible because of her mental condition, while Desronvil concluded she understood what she was doing. After seven days of deliberations, the judge declared a mistrial on September 4.

Clancy’s lawyers are now arguing that the case should be dismissed rather than retried, contending that the court should have investigated the holdout juror and potentially replaced him with an alternate before ending the trial. Prosecutors have not yet announced whether they will pursue another trial.

The original trial revolved around a sharply disputed medical question. Defense psychiatrists said Clancy experienced postpartum psychosis, including hallucinations and delusional thinking. Prosecution experts disagreed, arguing that she suffered from severe depression but still understood that killing her children was wrong.

The renewed courtroom fight comes as Patrick Clancy has also spoken publicly about Cora, Dawson and Callan, describing how he continues to dream about and speak to his children. His comments have brought new emotional attention to the case while the legal dispute over a possible second trial continues.