Yacht Owner Accused Of Intentionally Killing Designer In Fatal Assault

A wealthy yacht owner stands accused of killing a young fashion designer in what authorities are calling an act of assault and negligence. Martha Nolan-O'Slatarra, thirty-three years old and the creative force behind East x East swimwear, died aboard Christopher Durnan's luxury vessel while it docked at Montauk Yacht Club on August 5, 2025. Her family filed a staggering fifty-million-dollar wrongful death suit in New York Supreme Court exactly one year after discovering her body, alleging that Durnan intentionally harmed the designer before she died.

The night began normally enough when Nolan-O'Slatarra met with Durnan to discuss business for her brand at the upscale club. But everything turned into a nightmare around midnight when Durnan ran naked down the dock screaming for help and pointing out that his blonde, blue-eyed guest had collapsed on board. Crew members rushed onto Ripple to try reviving her but arrived too late. She was pronounced dead right there on the deck of the fifty-foot cabin-cruiser.

The legal documents obtained by the Daily Mail accuse Durnan of causing death through gross negligence and wanton conduct, either alone or in combination with other acts. They claim he intentionally assaulted the designer without specifying exactly how that violence occurred. The suit also seeks damages for conscious pain and suffering she endured before passing away alongside punitive compensation for her grieving family.

Investigators have offered very little clarity to this desperate mother and sister since the tragedy struck. Detectives told reporters an initial autopsy found no evidence of physical violence while stating the final cause of death remains under investigation. Some witnesses noticed a strange white powder dusting seats inside the yacht which fueled rumors about a drug overdose. However, an independent autopsy commissioned by the family revealed only trace amounts of cocaine in her system instead of a fatal dose.

This legal battle comes months after Durnan faced his own trouble with the law back in 2021 when retired firefighter Michael Balfe sued him over a vicious attack inside Webster Hall. Balfe claimed he was bitten and assaulted on September 11, 2021 leaving him seriously injured both physically and mentally during that chaotic night at the famous East Village venue. Criminal records show Durnan pleaded guilty to disorderly conduct after being arrested for possession of controlled substances but maintained his actions were justifiable self-defense against an initial aggressor.

Now Durnan's attorney Robert Holdman insists he did not kill Nolan-O'Slatarra according to a statement given to New York Magazine last year. He says the designer went limp sometime between ten thirty and eleven pm on that fatal night while Durnan feared she was having a heart attack. Holdman claims the owner tried performing CPR but it was useless because she was gone almost immediately after becoming unresponsive.

The family feels stuck in the same dark place they occupied twelve months ago where they knew very little then and know even less now despite pressing Suffolk County police for answers about her mysterious passing. They continue to deny any theory that cocaine overdose caused her death while demanding justice for what happened aboard that swanky yacht off Long Island. The community watches closely as this case unfolds knowing the potential impact on local boating circles and anyone who might face similar situations in the future.

She was non-responsive." That chilling description came from a lawyer defending the victim in a case where his client claimed he stripped off all his clothes that night because they were soaked with vomit from the deceased. The woman at the center of this tragedy is Martha Nolan-O'Slatarra, a self-made entrepreneur who grew up in Carlow, Ireland before moving to New York and crafting a jet-setting life of luxury often linked to Manhattan's elite circle.

Nolan-O'Slatarra arrived in the US roughly ten years ago and quickly embraced her new status in the Big Apple. In an interview with The Irish Independent back in 2024, she told reporters that she 'loved' living on the Upper East Side. Her social media presence painted a picture of excess: sipping champagne at nightclubs, boarding private jets to Nashville for concerts, and cuddling up to her sales exec boyfriend Nicholas DiRubio during helicopter rides captured in TikTok posts.

Beyond her glamorous image, the petite fashionista built an empire by establishing several companies, including the Duper fashion accessories brand and the luxury swimwear label East x East. But that high-flying life had its legal shadows. A former employer filed a lawsuit in 2022 accusing her of stealing $34,000 from a company bank account. She flatly denied the allegation, and eventually, the case was settled without further public drama.

Her personal life also saw significant changes. The designer married one man and later split from another named Sam Ryan, finalizing an uncontested divorce just months before her death. Now, reporters have reached out to a lawyer for Nolan-O'Slatarra's family seeking more information on the circumstances surrounding her passing. An attorney representing Durnan could not be reached for comment as this story unfolds.