Lindsay Clancy, the Massachusetts mother charged with killing her three children, agreed in court to a stipulation accepting certain forensic facts as established, sparing prosecutors from having to prove them at trial. The move came shortly before a state police trooper testified that investigators found no usable fingerprints on a knife or three exercise bands allegedly used in the killings, a gap an expert says could complicate the prosecution's case even as it narrows the issues at trial.

Speaking directly to the judge on Tuesday, Clancy repeatedly confirmed, "Yes, Your Honor," affirming she understood and voluntarily accepted the stipulated facts, effectively waiving her right to require prosecutors to prove those specific points. The agreement is expected to shift the trial's focus toward Clancy's mental state at the time of the killings rather than disputed physical evidence, with legal observers noting the absence of fingerprint evidence on key items could become a point of contention as the case proceeds.