Robert Durst murdered wife Kathie after being told to 'take care of the ...

Robert Durst is being sued for the wrongful death of his wife Kathleen 'Kathie' Durst, 27 years after she vanished without a trace.

In the complaint, which was filed by Carol Bamonte if her role as administrator of her late sister's estate, Durst is accused of not only killing his first wife but then working with his family to cover up the murder. 

Durst's later father Seymour is frequently mentioned in the filing, which at one point states: 'Further investigation is ongoing to determine what involvement, if any, Seymour had in Kathie’s disappearance and murder. There is no question that he actively participated in the cover-up of Kathie’s disappearance and murder.'

It is also alleged that Seymour told his son to 'take care of the problem' just prior to Kathie's death when she she threatened to expose what she had alleged were illegal practices being carried out by the multibillion-dollar Durst Organization. 

The filing also cites multiple times that Durst has allegedly admitted to the murder, though he has never been convicted or even charged with her death.

That is due in large part to the fact that Kathie's body has never been discovered, and she was only declared dead in March 2017, which was 25 years after she went missing.

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The jinx: Robert Durst (above in 2016) has been hit with a wrongful death lawsuit by the sister of his first wife Kathleen, who vanished without a trace on January 31, 1982

The jinx: Robert Durst (above in 2016) has been hit with a wrongful death lawsuit by the sister of his first wife Kathleen, who vanished without a trace on January 31, 1982

Durst is currently being held in a Los Angeles prison as he prepares to stand trial for the murder of his former friend and confidante Susan Berman. 

 Berman was murdered execution style in her home, just months after then-district attorney for Westchester County Jeanine Pirro announced that the case was being reopened 18 years after Kathleen's death.

It has been theorized by some that Durst not only confided in Berman, but also had her wear a wig and stop by the couple's New York City apartment after she went missing to help give him an alibi.

Berman had contacted Durst to let him know that police wished to speak with her regarding the disappearance of Kathie just a few days before her death.

He would not have been charged with Berman's murder had he not appeared on 'The Jinx,' with the show finding a letter he had

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