The murder trial of Lindsay Clancy, a Massachusetts mother accused of killing her three young children in January 2023, concluded in a mistrial following a 11-1 jury deadlock during deliberations. Her defence attorney Kevin Reddington sought emergency intervention from the Massachusetts Supreme Court to remove the lone holdout juror, contending that the juror harboured bias against individuals with mental health conditions. The court declined the petition, resulting in the immediate termination of the trial.

The mistrial outcome prompted varied public reactions. Outside the courthouse, demonstrators and members of the public gathered to protest and heckle Plymouth County District Attorney Tim Cruz over his handling of the case. President Trump also issued public remarks describing the case as a "horrible tragedy" whilst stating that Clancy had committed a grave wrongdoing and would ultimately face accountability.