An Australian socialite who had accused two notorious twin brothers of sexual assault at a Hamptons estate has tragically passed away under mysterious circumstances.

Kate Whiteman was discovered deceased in Sydney toward the end of last year, as reported by The New York Times on Thursday.

The 45-year-old’s death is shrouded in uncertainty, with officials stating that an investigation is underway to determine if her passing was due to natural causes.

In March 2024, Whiteman filed a lawsuit against renowned realtor Oren Alexander and his twin brother, Alon. She alleged that she had encountered the brothers in New York City in 2012 and later accompanied them to a Hamptons mansion resembling a castle following an evening out.

According to Whiteman, she was sexually assaulted by the brothers upon reaching the estate.

Currently, Oren, Alon, and their sibling Tal are in custody, facing several rape charges. Oren and Tal have established themselves as prominent figures in the luxury real estate industry, while Alon is employed by a family-owned private security firm.

They deny the allegations made against them. 

In July 2025, a court documents exclusively revealed by the Daily Mail showed Whiteman continued to send the brothers sexually explicit messages and invited herself to their social events for over a year after she alleged they attacked her. 

Identical twins Alon and Oren Alexander are pictured in July 2015 

Kate Whiteman, a socialite who accused the pair of playboy twin brothers of sexually assaulting her at a ‘castle’ in the Hamptons, has been found dead in unexplained circumstances

The Alexander twins, 36, were accused in a civil lawsuit of raping a woman together in 2012 at Sir Ivan Wilzig’s castle in the Hamptons (pictured) – which they deny

Allegations against the playboy twins Alon and Oren Alexander were sparked in 2024 in a civil lawsuit brought by Whiteman, alleging that they raped her at ‘Sir Ivan’s Castle,’ a mansion owned by recording artist and songwriter Ivan Wilzig, in the Hamptons in 2012. 

Her claim triggered a wave of subsequent allegations from dozens of other women, and the brothers were arrested in June 2024 and remain in custody in New York. They have maintained their innocence. 

Federal prosecutors say they have spoken to at least 60 women who claim to be victims of at least one of the Alexander brothers. 

In a motion to dismiss Whiteman’s claims obtained by the Daily Mail last year, it was alleged that messages Whiteman sent to the brothers after the alleged attack undercut her allegations. Her attorneys disputed this. 

Court documents showed that Whiteman allegedly sent a slew of explicit messages, erotic photos and social invites to the Alexander brothers for over a year and a half after the alleged rape. 

She claimed in her original lawsuit that she was ‘terrified’ of the brothers and was ‘so distraught after’ that ‘for months, she stayed in bed and very rarely left her home due to extreme depression, anxiety and fear for her own safety.’

But the motion to dismiss the lawsuit claims that just one month after the alleged rape, Whiteman wished Oren a happy birthday and asked if she could bring two female friends to his party. And, one year after the alleged assault, Whiteman asked the brothers to return to ‘Sir Ivan’s Castle.’

Alon and Oren Alexander at Sir Ivan’s Medieval Madness Birthday Bash For Model Mina Otsuka At His Hamptons Castle in 2011

Oren (right) is pictured with fashion designers Tommy Hilfiger and Dee Ocleppo in 2017 

Whiteman’s attorneys filed a memorandum in opposition of the Alexanders’ motion to dismiss, in which they accuse the brothers of ‘cherry-picking’ the messages from Whiteman.

Whiteman alleged in her initial civil complaint that the rape unfolded on Memorial Day Weekend in 2012, and claimed that Alon grabbed her as she was leaving a nightclub and forced her into a waiting SUV with Oren.

In her complaint, she said she was driven to ‘Sir Ivan’s Castle’ where she was prevented from running away by a security guard, had her phone taken away and was forced to strip.

They then took her to a large bedroom where she was ‘sexually assaulted, abused, raped, pinned, groped, harassed, battered, and fondled by defendants Alon and Oren,’ according to her complaint.

But in the months and years after, the motion to dismiss claims it was Whiteman who continually reached out to the brothers with explicit images of herself and invites to social events.

The Alexanders’ motion to dismiss included messages sent 10 months after the alleged rape. In one, Whiteman sent Oren nude images of herself and said it would be ‘fun to get over’ her recent breakup if he came over to her apartment in Manhattan’s East Village, according to the filing. 

The Alexanders’ lucrative real estate careers were upended after dozens women accused the brothers of sexual assault. 

The brothers were once famed realtors with the renowned Douglas Elliman real estate firm and were often spotted rubbing shoulders with high-profile socialites. They made their name selling America’s most expensive property ever, a $238 million penthouse overlooking Central Park in 2019.

Alon and Oren, along with their older brother Tal, were arrested in December and were charged with orchestrating a sex trafficking scheme for over a decade, according to the federal indictment.

The brothers have been accused of working together and with others to drug, sexually assault and rape dozens of women. Federal prosecutors say they have spoken to at least 60 women who claim to be victims of at least one of the Alexander brothers.

Oren Alexander (left) and his identical twin brother Alon (right) have both pleaded not guilty

The brothers (pictured Tal far left, Oren second left, Alon far right) come from a well-known real estate family in Miami. Their father is top Florida developer Shlomi Alexander (pictured center right alongside businessman Howard Lorber)

The Alexanders have also been accused of using deception, fraud and coercion to lure victims to private locations for trips or events, where the brothers allegedly raped and sexually assaulted them, per the indictment. It is alleged that they used drugs to impair their victims, which prevented the victims from providing consent or fighting back.

In addition to federal charges, the Alexander brothers – who are currently awaiting their 2026 trial behind bars without bail at Brooklyn’s Metropolitan Detention Center – also face multiple sexual assault lawsuits across multiple states.

They have maintained their innocence, pleading not guilty to criminal charges and denying liability in the civil cases.