Lindsay Clancy trial: Legal experts see a “complete disaster” for prosecutors after jury standoff over reasonable doubt

There is one thing legal experts agree on after a dramatic turn in the Lindsay Clancy murder case: the prosecution left the courtroom with a heavier burden than it walked in with.

Clancy, 36, is charged with strangling her three children — Cora, 5; Dawson, 3; and Callan, 8 months — at their Massachusetts home in January 2023. Her lawyers have not disputed the basic facts. Instead, the case has come down to a single question: Was she so severely mentally ill at the time that she should not be held criminally responsible, or were the killings the calculated acts of a controlling mother who had planned them in advance?

After roughly a week of deliberations, the jury's tensions spilled into open court on Sept. 3. The foreperson complained to Judge William Sullivan that one of the 12 jurors refused to consider reasonable doubt, the legal standard prosecutors must satisfy for a guilty verdict. Defense attorney Kevin Reddington immediately asked the judge to remove the holdout juror, warning that a mistrial caused by someone who “spurned the instructions of the court” would be “a shame, a real shame.”

Sullivan declined to dismiss the juror, saying it was not proper for him to side with one juror or 11. He then re-instructed the full panel on its duties.

The legal fallout was sharp. Three legal experts interviewed by USA TODAY said the developments were highly unusual and deeply damaging to the prosecution's case.

Alan Jackson, the Los Angeles defense attorney who represented Karen Read in her Massachusetts murder case, said the foreperson's note essentially exposed the jury's math.

“I think that hanging juror is voting guilty in the face of 11 jurors voting either not guilty or not criminally liable,” Jackson said. “I think there's going to be more fireworks tomorrow if, in fact, they don't come to a verdict very, very quickly.”

Mark Bederow, a former Manhattan prosecutor turned New York City defense lawyer, was blunter.

“When you break it all down this is a complete disaster for the prosecution,” Bederow said. “They're in serious trouble and at this point, the best thing they can hope for is a mistrial, and that's if they're lucky. ... They had a very bad day.”

From here, Sullivan has several options. The holdout juror could change course. The jury could come back deadlocked, forcing a mistrial. Or the judge could dismiss the holdout and install an alternate, which would send deliberations back to the beginning. Bederow said that last outcome would be unlikely to change the overall picture, because the other 11 jurors have shown little sign of shifting.

Jennifer Roman, a Massachusetts-based legal analyst closely following the case, said the jury's frustration was obvious after more than 30 hours behind closed doors.

“This jury is very frustrated and they want to be done,” Roman said. “The fact that the jury is calling out this person and saying, 'They're not following your instructions, judge,' ... This jury is exasperated.”

Part of what makes the jury's struggle so significant is Massachusetts' distinctive instruction on reasonable doubt. Jurors are told that before they can convict, they must have a “moral certainty” that the charge is true. That language, Jackson said, is enormously powerful for the defense.

“It's the only reason I won a trial in Massachusetts is because of that damn jury instruction,” Jackson said. “It is the single most powerful part of the jury instructions in Massachusetts.” In defending Karen Read, he said, he relied heavily on the idea of moral certainty because it reaches jurors in ways ordinary legal language often does not.

Roman said the judge may need to clarify for jurors that moral certainty does not mean 100% certainty, but it remains a meaningful hurdle for the prosecution to clear.

The case has drawn national attention not only because of the horrific facts, but because it raises hard questions about mental illness, motherhood and criminal responsibility. Clancy's supporters say she was suffering from postpartum psychosis and had sought help before the killings. Prosecutors Shanan Buckingham and Jennifer Sprague, however, have portrayed her as a meticulous, manipulative woman who sent her husband out to pick up food and medicine, mapped his likely route, and used the time alone to kill the children in a planned attack.

A mistrial would be a staggering outcome for both sides. It would leave the families waiting longer, force prosecutors to decide whether to retry the case, and add another painful chapter to a story that has already consumed a grieving community.

For now, the jury remains behind closed doors. More legal maneuvering is likely when court resumes, and everyone in the courtroom will be watching for the next note from the jury room.