Martha Nolan-O’Slatarra, 33, of Manhattan, was found dead on a boat docked...

Martha Nolan-O’Slatarra, 33, of Manhattan, was found dead on a boat docked off Montauk last year, according to Suffolk police. Credit: John Roca; Martha Nolan-O’Slatarra

The family of an Irish fashion designer found dead on a boat docked at the Montauk Yacht Club last year has launched an online tip hotline to learn about the 33-year-old’s final days.

Martha Nolan-O’Slatarra’s family — who filed a $50 million wrongful death lawsuit last month — created the site MarthaTipline.com to ask anyone with information to come forward while their legal team continues to investigate the Manhattan woman's death.

"Even if you are unsure whether what you know is important, we want to hear from you," the website says.

Their attorneys, Michael Bowe and Lauren Tabaksblat, of Brithem LLP, filed the wrongful death suit against Christopher Durnan, 61, of Long Beach, who owns the Ripple, a 32-foot pleasure boat where Nolan-O’Slatarra was found dead.

Durnan was the last person to see her alive, according to the website.

The family hopes to hear from anyone who was at the yacht club between Aug. 4 and Aug. 5, 2025, 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 communication" before or after her death.

"The tipline is one part of a robust investigation we have and continue to prosecute. We encourage all who have information to share it," attorney Michael Bowe said in a statement to Newsday. "Even small details or seemingly unimportant information is valuable. We thank all those who have already done so."

While Durnan has not been criminally charged with Nolan-O’Slatarra's death, the lawsuit accuses him of "intentionally and wrongfully" assaulting the designer, in whose business, East x East, he had been investing.

Newsday reported last year that Suffolk County's interagency East End Drug Task Force was investigating the role drugs may have played in her death.

An autopsy conducted on Nolan-O’Slatarra showed no evidence of violence, police said last year.

Durnan could not be reached for comment.

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