Who is David Sabatini? Ex-MIT scientist, once a Nobel contender, wins $6 million defamation case

David Sabatini, a former MIT scientist once considered a potential Nobel Prize contender, has won $6 million in a defamation lawsuit against his former colleague Kristin Knouse. The verdict follows years of legal disputes over allegations of sexual misconduct that damaged his career. The information is taken from People, The New York Times and The College Fix.

Knouse’s lawyer has criticized the decision and said her legal team plans to appeal. The case has drawn attention to the competing accounts of their relationship and the fallout that followed an internal investigation.




David Sabatini, a prominent biologist whose research advanced understanding of cancer and aging, has been awarded $6 million in damages after a Suffolk County jury found in his favor in a defamation case against Kristin Knouse.

The verdict, reported by The Boston Globe, came on Friday, October 16, after a legal battle that began with allegations about their relationship while they worked at the Whitehead Institute for Biomedical Research, affiliated with MIT.

Sabatini, now 58, argued that the allegations had severely harmed his professional reputation and ability to earn a living. Knouse, who is now an assistant professor of biology at MIT, has maintained that she truthfully described her experiences. Her legal team intends to appeal.

Why Did He Leave MIT

Sabatini was a cancer researcher who worked as the head of a lab at the Whitehead Institute for over 20 years. His research caught the interest of scientists and his work made people think that he could possibly win a Nobel Prize one day.

His career changed in 2021, when an internal investigation examined his relationship with Knouse, then a fellow at the institute. The investigation found that Sabatini had failed to disclose the relationship and violated workplace policy. It also concluded that he had created a “sexualized undercurrent in the lab.”

Sabatini maintained that their sexual relationship was consensual and ended after he began pursuing another woman. He was removed from his position at the Whitehead Institute and later resigned from his tenured position at MIT.

New York University subsequently decided not to hire him following protests from students who described him as a “serial sexual harasser.”



Sabatini then pursued legal action against Knouse and the Whitehead Institute. The institute later confirmed to PEOPLE that all claims against it had been dismissed and that it was not a party to the defamation case.

What Did the Jury Decide in the $6 Million Lawsuit?

Sabatini alleged that Knouse’s claims had damaged his career and reputation. According to the New York Post, his legal team presented text messages that they said supported his account that the relationship was consensual. They also argued that Knouse had become jealous of another woman and wanted him fired.

The jury ultimately awarded Sabatini $6 million, plus interest. His attorney, Lisa Arrowood, called the outcome “a moment of sweet justice.” Speaking to PEOPLE, she said, “After being branded a sexual harasser over five years ago, 13 Suffolk county jurors (seven women and six men) found that David Sabatini did not sexually harass Kristin Knouse and that she defamed him by calling him a sexual predator,”

She added, “Dr. Sabatini is so grateful that a jury of his peers had all the facts and spoke the truth in their verdict.”

Sabatini also described the result as “overwhelming,” according to Fox News Digital.

“It was done,” he said. “We had won everything, lost nothing. It was like a complete sweep.”

Why Is Kristin Knouse Planning to Appeal?

Knouse’s attorney, Ellen Zucker, called the verdict “disappointing” in a statement to PEOPLE. She said Knouse had spoken truthfully about her experiences and pointed to testimony from other women who described concerning experiences in Sabatini’s laboratory.

Zucker also criticized the broader implications of the decision, saying it remained difficult for women to hold powerful men accountable.

Speaking to The New York Times, she said, “The sad reality of our time is that society still has a difficult time believing women and appreciating the difficulty they encounter with men who too often control their fate.”

Knouse’s legal team plans to appeal the verdict, leaving the dispute over the allegations and their consequences unresolved.