Kate Whiteman: Australian woman who accused Alexander Brothers of rape at Hamptons party mansion found dead

An Australian woman who accused a real estate mogul and his twin brother of sexually assaulting her at a Hamptons mansion has been found dead.

Kate Whiteman, 45, was discovered near Sydney late last year, and authorities are now investigating her death, The New York Times reported on Friday.

A spokesperson for the New South Wales Coroner told the publication that the cause of death has not yet been determined but authorities are questioning whether she died from “natural causes”.

Whiteman filed a civil lawsuit in March 2024, accusing Oren Alexander, a high-profile real estate agent, and his twin brother, Alon, of raping her in 2012.

According to the lawsuit, Whiteman met the brothers at a Manhattan nightclub and was allegedly forced into their SUV as she was leaving.

She claimed she was driven to “Sir Ivan’s Castle”, a well-known party mansion in Water Mill, Southampton, owned by Ivan Wilzig, where the alleged sexual assault took place.

After Whiteman filed her suit, additional women came forward with similar allegations against the twins. In some cases, their older brother, Tal Alexander, was also named.

In mid-2024, the allegations became public after a real estate trade publication, The Real Deal, reported that Whiteman and another woman had filed lawsuits against the brothers. A third woman later sued all three siblings, with further accusations spreading across social media.

In December 2024, Oren, Alon and Tal were criminally charged with 11 counts of sex trafficking. All three have denied the allegations and have remained in custody without bail at the Metropolitan Detention Centre in Brooklyn.

Oren was previously among New York’s top-earning real estate agents and worked alongside Tal at Douglas Elliman before the pair launched their own luxury firm, Official, in 2022.

The brothers were known for brokering record-setting deals, including the 2019 sale of a nearly $US240 million ($350m) penthouse, the most expensive residential sale in US history at the time.

Alon worked as an executive at the family’s private security firm and was frequently seen accompanying his brothers at high-profile social events and private clubs.

The Alexanders have denied all wrongdoing, claiming the lawsuits and criminal charges are part of an orchestrated conspiracy by women attempting to extort them.

Last year, they filed a $500 million defamation lawsuit against The Real Deal, accusing the outlet of refusing “to consider or publish anything that called into question its false narrative”, the Times reported.

All three men are due to face trial later this month. A source told The New York Post that Whiteman was not expected to testify at the trial.