Newton South Mock Trial Team prepares for national competition. Front: Owen Butler, left, and Emily Zisow, right. Back: Theo Younkin, left, and Sofia Telio, right. Courtesy photo
A courtroom filled with mystery, jealousy and a peanut allergy found Audrey South guilty of poisoning Ava Maru on the set of their TV show, “Steepton Mystery.”
The most surprising part of the case? It was entirely fake.
It was the Newton South High School Mock Trial Team that told the story at the Massachusetts mock trial championship March 20—and won. Arguing as the prosecution, the team beat Dover-Sherborn and secured its first state championship since 2008 and is now preparing for the national tournament May 7-9 in Des Moines, Iowa.
As prosecutors, the team argued that Audrey South, the director of “Steepton Mystery,” murdered Ava Maru, driven by lingering resentment from their university days. The defense sought to cast doubt on that narrative, claiming the death was either a tragic accident or caused by another actor, Lugansky Cook, whose jealousy over losing the lead role provided motive.
“By the time you get to finals both teams are just so incredibly good that it was honestly a toss-up,” said Sophia Telio, one of the Newton South captains. “We ended up winning on a 2-1 judge split.” Months of preparation led to that moment. The team—led by their captains Emily Zisow, Sophia Teilo, Theo Younkin and Owen Butler—developed nearly two dozen examinations and witness testimonies, refining arguments and performances in daily practices leading up to the competition.
But the trial was not just about legal reasoning. It was also about performance, the team explained.
On the stand, Lugansky Cook, portrayed by Owen Butler, became one of the case’s most memorable figures. As questioning intensified, Butler leaned into the role.
“As the defense asked the last questions, I got a little choked up,” Butler said. “I think my fake crying was pretty good.”
The drama escalated during cross-examination when Butler, still in character, pushed back against a confusing line of questioning.
“I kept saying, ‘Sorry, I don’t understand the question,’ but finally I said, ‘Are you threatening me?’” he said.
The courtroom reacted immediately. The presiding judge cut in: “Mr. Cook, please answer the question.” Teammates later said the moment felt strikingly real.
Beyond the theatrics, team members point to something less visible as the key to their success: their culture.
“We put in a lot of time and a lot of effort and we have a really strong and supportive team,” Younkin said.
That approach meant long nights, constant collaboration and a team that stayed connected well beyond scheduled practices, reviewing scripts, running arguments and supporting one another.
“Mock trial is like when you eat really good food—you just keep coming back to it,” Butler said.
Even amid the intensity, the team found ways to keep things light. While preparing for states, they coached a freshman witness who struggled to sound convincing on the stand.
“Because he’s younger, he had a younger-sounding voice,” Telio said. “So we trained him to speak a little older. It was like a Pavlovian soundboard trick. We’d play a TikTok audio every time he reverted back, and it would snap him into the older voice.”
The method worked, and the freshman went on to deliver one of the strongest performances of the competition as an expert witness.
While young, many members of the Newton South team are keen on becoming lawyers, which they attribute to their love for argumenting, interest in social justice and even acting and improv. But even outside mock trials, the students are just as busy: tutoring kids, working in journalism or student government.
After battling through preliminary rounds—elimination playoffs to the state championship—the team is turning its attention to nationals, where they will face a new challenge: a civil case centered on a wrongful death during a citywide scavenger hunt in Des Moines. With only about a month to prepare, far less than the months they had before, students are once again diving into evidence, arguments and strategy.
For a team built on both discipline and camaraderie, the next case is not simply another story to tell but another chance to prove it.
“Apparently New York and Texas are pretty good,” Butler said about the biggest competitors.
“We’ll see, but if we want to put positive vibes out there, I’d say we’re the biggest threat,” Zisow responded.
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This story is part of a partnership between the Newton Beacon and the Boston University Department of Journalism.













