More than a year after the 33-year-old fashion entrepreneur was found dead aboard a boat at the Montauk Yacht Club, her family is seeking witnesses and information as it pursues a $50 million wrongful death case

More than a year after fashion entrepreneur Martha Nolan-O’Slatarra was found dead aboard a boat at the Montauk Yacht Club, her family is making a public appeal for information about her final hours.

The family and its attorneys at Brithem LLP have launched MarthaTipline.com, asking anyone who may have seen, heard or communicated something relevant to Nolan-O’Slatarra’s death to come forward.

“Even if you are unsure whether what you know is important, we want to hear from you,” the website states.

The latest development comes as Nolan-O’Slatarra’s family pursues a $50 million wrongful death case against Christopher Durnan, 61, of Long Beach, owner of the Ripple, the 32-foot pleasure boat where Nolan-O’Slatarra was found unresponsive.

Attorneys Michael Bowe and Lauren Tabaksblat of Brithem LLP filed a summons with notice on Aug. 4 on behalf of Nolan-O’Slatarra’s estate. The filing alleges assault, gross negligence and reckless conduct and claims Durnan “intentionally and wrongfully assaulted” Nolan-O’Slatarra.

Those are allegations in a civil action. Durnan has not been criminally charged in connection with Nolan-O’Slatarra’s death.

Who the Family Wants to Hear From

The family is asking anyone who was at or near the Montauk Yacht Club between Aug. 4 and Aug. 5, 2025, to consider whether they may have information.

That includes people who worked at the yacht club or a nearby business; saw or interacted with Nolan-O’Slatarra or Durnan; witnessed activity on or around the docks or vessels; or had relevant communications before or after her death.

The tip line website identifies Durnan as the last person known to have seen Nolan-O’Slatarra alive.

“The tipline is one part of a robust investigation we have and continue to prosecute,” Bowe said in a statement to Newsday. “We encourage all who have information to share it.”

“Even small details or seemingly unimportant information is valuable,” he added. “We thank all those who have already done so.”

What Happened in Montauk

Nolan-O’Slatarra, an Irish-born fashion entrepreneur who lived in Manhattan, was 33 when she was found unresponsive aboard the Ripple at the Montauk Yacht Club shortly after midnight on Aug. 5, 2025.

Good Samaritans attempted CPR before first responders arrived, but Nolan-O’Slatarra was pronounced dead at the scene.

She was the co-founder of the fashion brand East x East and had been building her business in New York and the Hamptons. Durnan had invested in the business, according to news reports and the family’s attorneys.

In the immediate aftermath of her death, East Hampton Town police said a preliminary examination found no evidence of violence. Suffolk County authorities later investigated whether drugs may have played a role in her death.

More than a year later, a final cause of death has not been publicly released.

Family Challenges Account of Her Death

Nolan-O’Slatarra’s family has questioned whether intoxicants caused her death and retained its own experts to investigate.

Bowe has said a second autopsy was conducted by an independent medical examiner who did not believe Nolan-O’Slatarra died from intoxicants. He has also said emergency medical personnel found blood in and around her mouth and on her chest and head.

Bowe further alleged that law enforcement told Nolan-O’Slatarra’s family that the scene appeared to have been cleaned before first responders arrived.

Those claims have not been established in court, and authorities have not publicly accused Durnan of causing Nolan-O’Slatarra’s death.

The family’s attorneys have also disputed an account they say was attributed to Durnan that Nolan-O’Slatarra had vomited on him, saying independent autopsy findings showed no evidence that she had vomited before her death.

Durnan Has Retained an Attorney

Durnan is being represented in the civil matter by maritime attorney James Mercante of Gallo Vitucci Klar LLP, according to a recent report by Greater Long Island.

Mercante filed a notice of appearance Aug. 25. As of the report published Sept. 22, a formal complaint had not yet been filed in the case.

Durnan has not been charged with a crime in connection with Nolan-O’Slatarra’s death.

A Public Appeal for Answers

For Nolan-O’Slatarra’s family, the new tip line is an effort to reach people who may have been in Montauk that night — including someone who may not realize that what they saw or heard could matter.

The family’s attorneys say their investigation is continuing and are asking potential witnesses not to dismiss seemingly minor details.

Anyone with information about Nolan-O’Slatarra’s whereabouts, interactions or the activity around the Montauk Yacht Club on Aug. 4 and 5, 2025, can contact the family’s legal team through the tip line.

IF YOU HAVE INFORMATION

MarthaTipline.com

The family is seeking information from anyone who was at or near the Montauk Yacht Club on Aug. 4 or 5, 2025; saw or interacted with Martha Nolan-O’Slatarra or Christopher Durnan; observed activity around the docks or vessels; or may have relevant communications or other information surrounding Nolan-O’Slatarra’s death.