Reporter's note: If you were a member of the jury who would like to speak out, please contact me at Adam.Sabes@fox.com.

The lone holdout in the Lindsay Clancy murder trial used an exercise band and a water bottle to demonstrate how her children were strangled, a fellow juror said.

Clancy, 36, faced three counts of first-degree murder in connection with the deaths of her children — Cora, Dawson and Callan, all under the age 6 — who were discovered strangled at the family's home in January 2023. Judge William Sullivan declared a mistrial Friday after jurors could not agree on a unanimous verdict, with the panel reportedly split 11-1.

Nick Dargie, 25, told ABC News that the lone holdout juror at one point attempted to mimic the way Clancy killed her three kids with an exercise band and water bottle.

"He took the exercise band out of the bag, grabbed an empty water bottle and tied the band around the water bottle and pulled it," Dargie said. "I was just so shocked that he did that."

"I was shocked, it didn‘t make any sense to me. Like, we‘re not in here to play detective or it‘s not a game of Clue. like, this is serious. I asked him why," he added.

Dargie said the holdout juror refused to explain how witness testimony helped prove his stance.

"There was several times I would ask him to show us evidence or, you know, describe a witness testimony that helped to prove what he was saying, and ... he couldn't," Dargie said. "There wasn't a single piece of evidence or witness testimony that he used to prove why he was thinking the way he was, which is why we ultimately sent in that note."

He was referring to the note sent by the jury foreperson, who reported that one juror was refusing to follow the court's instructions on reasonable doubt.

After several jurors came forward about what went on in the deliberation room, Clancy's defense attorney, Kevin Reddington, told "Lindsay Clancy's case after the mistrial, Sullivan set a status hearing for Sept. 29.