Renowned scientist wins eye-watering seven-figure payout after jury rules his much younger colleague lied about him being a sex pest

A scientist once lauded as a possible Nobel Prize winner won a massive payout after a Massachusetts jury found that his much younger colleague lied about him being a sex pest.

David Sabatini, 58, a world-renowned molecular biologist, saw his glittering career fall apart in 2021 amid allegations that he had an inappropriate and abusive affair with Kristin Knouse, 38, at his lab. 

Knouse and other researchers accused Sabatini of running a toxic and sexually-charged laboratory, and allegations of abuse were escalated amid the #MeToo movement at the time. 

Sabatini was then booted from his prestigious positions at the Whitehead Institute and Massachusetts Institute of Technology (MIT). 

He brought a civil lawsuit five years ago insisting he had been unfairly targeted by a smear campaign, which he alleged was launched by Knouse when he ended their tryst. 

Knouse then countersued Sabatini, alleging he abused his position of power over her to coerce her into an abusive work culture and non-consensual relationship. 

The dueling lawsuits were heard in a Boston courtroom over a grueling three-week civil trial that concluded on Wednesday.

Just two days later, the jury of seven women and six men ruled that Knouse is liable for $6 million in damages, plus interest after she defamed Sabatini and interfered with his ability to earn a living, the Boston Globe reports.

The molecular biologist was ousted from his position at MIT in 2021, after an internal investigation revealed that he violated a strict workplace relationship policy at the world-famous Whitehead Institute, where he ran his own lab, by having an affair with Knouse.

The two first got together in 2018 at a conference in Washington DC, when Knouse was preparing to begin as a Whitehead Fellow. 

Sabatini had begun mentoring Knouse to start her own laboratory, and bonded over a shared love of science and molecular biology. 

Both scientists admit they had sex at the conference, with Sabatini saying they had a consensual encounter while Knouse said she was coerced after trying to resist. 

But during the three-week long trial in Suffolk Superior Court, Sabatini's attorneys presented texts Knouse sent the next morning in which she expressed no regrets about their night together, the Globe reports.

After their night together in Washington DC, the two scientists carried on an affair for around a year and a half, and they told investigators they had sex roughly 15 times while maintaining a friendship. 

Sabatini said he continued mentoring Knouse and seeing her outside of work, but felt their relationship changed when Knouse wanted a deeper commitment from him in 2019. 

Knouse, however, claimed she felt pressured by Sabatini's professional status as her boss, and began feeling used and sexually exploited. 

Their relationship ended in January 2020 when Sabatini told her he wanted to date another scientist, after which Knouse reported him to the Whitehead Institute for alleged misconduct. 

Whitehead launched an independent investigation into Sabatini, and in August 2021 he resigned after investigators found he fostered 'sexist and sexualized work discussions.' 

He then resigned from his tenured position at MIT the next year, and he became one of the faces of the #MeToo movement that was gripping the nation at the time. 

Sabatini saw his reputation destroyed by the allegations, and reports that he would be hired by New York University’s Grossman School of Medicine in 2022 led hundreds of students to stage a mass protest against the move. 

The scientist said he slipped into depression due to the collapse of his professional and private life, and he told the court that he attempted suicide. 

Sabatini argued in court that the allegations have cost him almost $2 million between 2020 and 2025, and his attorney argued that he was a victim of an overzealous #MeToo campaign that unjustly condemned him. 

Jurors ultimately rejected Knouse's case completely, finding she defamed Sabatini and 'interfered with all of his relationships with his then-current employers and potential future employers,' his attorney, Lisa Arrowood, told the Globe.

'We are so happy that we got David Sabatini's good name back,' she said. 'Now he can be regarded as the brilliant scientist he is.'

Sabatini also told The New York Times he hopes the verdict is a step toward regaining his reputation.

'Before I was judged for having a great lab and for providing great mentoring,' he said, noting: 'For the most part, my trainees have been there for me through this.'

'I hope that I can get back to being judged by my science and my training.' 

But just moments after the verdict was read in court on Friday, Knouse and members of her legal team were seen sitting in the empty courtroom crying and embracing one another.

One longtime member of Knouse's lab, who testified on her behalf, even 'body checked' a member of Arrowood's legal team in the aftermath, the lawyer claimed.

'I've been doing this for 44 years and I've never seen anyone react like this,' she said. 'It was incredible.'

Knouse's attorney, Ellen Zucker, said her client now intends to appeal the verdict.

She told the Globe that she and Knouse 'engaged in this particular legal battle' because it was the right thing to do. 'So, we're not going to stop.'

'Multiple women came into court to speak about David Sabatini's conduct towards them,' she noted. 'Kristin Knouse testified truthfully about hers.'

Zucker went on to argue that the verdict is 'unfortunate' not just for Knouse 'but for a lot of people... the good women and men who investigated this, who came to court to speak of their experiences and have tried to help move this culture forward.

'This is a sad day for all of them.'

The lawyer then concluded by declaring that the verdict is symptomatic of a culture that fails to believe women and hold men accountable, comparing it to the situation at Cornell University, where a woman claimed seven men sexually abused her in 2024.

'We, as a country, have often excused that [conduct that] objectifies, harms women,' Zucker argued. 

'It does seem to be a symptom of a time where calling individuals to account for their violation of the rules and their failure in basic human decency, it's still tough to do that.'