Susan Berman sealed her fate when she told best friend Robert Durst, falsely, that detectives had asked to talk to her about Durst's wife's disappearance 18 years earlier, prosecutors said Thursday.

Durst allegedly told Berman that she should agree to be interviewed, but privately made his own plan.

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Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Susan Berman sealed her fate when she told best friend Robert Durst, falsely, that detectives had asked to talk to her about Durst's wife's disappearance 18 years earlier, prosecutors said Thursday.

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Lewin outlined the last days of Berman's life, when Durst was scrambling around the country, stockpiling money and setting up the false identity of an elderly mute woman because authorities had reopened the investigation into the 1982 disappearance of his wife.

Deputy District Attorney John Lewin gestures during the second day of opening statements of Robert Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

“She said ‘Bobby it would be best for both of us if I just talked to them,’" Durst said while recalling the phone conversation in an interview for the HBO documentary series, “The Jinx." That 2015 program helped lead to his arrest in Berman's killing. “What am I going to say, ‘no?’”

Real estate heir Robert Durst, middle, sits with his defense attorneys, David Chesnoff, left, and Dick DeGuerin during his murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020.After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Wednesday, prosecutors will argue Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Authorities have never been able to place Durst in the Los Angeles area at the time of Berman's killing, though they have long known he was in California, and Lewin laid out for jurors the pile of circumstantial evidence on Durst's whereabouts.

Real estate heir Robert Durst sits during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Wednesday, prosecutors will argue Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

The mileage on Durst's SUV, which he did not have much access to afterward, was consistent with his having driven to Los Angeles and back to San Francisco, Lewin said.

Deputy District Attorney John Lewin speaks during the second day of opening statements of Robert Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Durst testified that he dismembered the body and threw it in the Gulf of Mexico, but was acquitted.

Deputy District Attorney John Lewin gestures during the second day of opening statements of Robert Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. Lewin gave the jury biographies of Durst and Berman, who met as students at UCLA in the 1960s, casting him as the careless millionaire son of a real estate giant who didn't believe rules applied to him, and her as the daughter of a Las Vegas mobster who learned from her father that nothing was more important than loyalty. (Robyn BeckAFP via AP, Pool)

“Mr. Lewin keeps saying ‘murder,’ he was found innocent of murder,” DeGuerin said.

Real estate heir Robert Durst, far left, sits during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. Defense attorneys, David Chesnoff, top left, and Dick DeGuerin, far right. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Wednesday, prosecutors will argue Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

The judge overruled DeGuerin's objection and repeatedly urged the lawyers to calm down.

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. "Bob Durst killed his wife," Deputy District Attorney John Lewin said at one point during his opening statement at the trial of the real estate heir Durst, who is charged only with the murder of his friend Susan Berman in 2000. At right, Los Angeles County Superior Court Judge Mark E. Windham. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. "Bob Durst killed his wife," Deputy District Attorney John Lewin said at one point during his opening statement at the trial of the real estate heir Durst, who is charged only with the murder of his friend Susan Berman in 2000. At right, Los Angeles County Superior Court Judge Mark E. Windham. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

“Though he told her, ‘Go talk to them,’ he also decided to kill her," Los Angeles Deputy District Attorney John Lewin told jurors during a second day of opening statements in the trial of the wealthy New York real estate heir. Durst, 76, has pleaded not guilty to murder in the 2000 killing of Berman in her Beverly Hills home.

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Lewin outlined the last days of Berman's life, when Durst was scrambling around the country, stockpiling money and setting up the false identity of an elderly mute woman because authorities had reopened the investigation into the 1982 disappearance of his wife.

Durst has never been charged in connection with the disappearance of wife Kathie Durst, who was later declared dead, but prosecutors in the Berman murder trial have been allowed to present evidence that Durst killed her, told Berman, who acted as his spokeswoman and helped him cover his tracks, then shot Berman in fear of what she might tell investigators.

Lewin said that while New York detectives did in fact intend to talk to Berman, and had already spoken to her friends, they hadn't actually approached her yet, and did not say why she might have told Durst they had, but it was a fatal error because Durst believed it and acted on it.

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

“She said ‘Bobby it would be best for both of us if I just talked to them,’" Durst said while recalling the phone conversation in an interview for the HBO documentary series, “The Jinx." That 2015 program helped lead to his arrest in Berman's killing. “What am I going to say, ‘no?’”

Durst was already on the run at the time of the conversation. After learning through his family company that police were investigating his wife's death again, he began stockpiling cash, stopped using his cell phone, married a woman he had dated previously and signed over power of attorney to her in what he called a “marriage of convenience." He rented a small apartment in Galveston, Texas where he would live and pose as a mute elderly woman named Dorothy Ciner, a name taken from a high school classmate.

“I decided I had to go into hiding,” Durst said in another “Jinx” clip played for jurors. “People are going to find me guilty. I’ve been guilty for years in the newspapers, now they’re really going to find me guilty.”

Deputy District Attorney John Lewin gestures during the second day of opening statements of Robert Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Robert Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Authorities have never been able to place Durst in the Los Angeles area at the time of Berman's killing, though they have long known he was in California, and Lewin laid out for jurors the pile of circumstantial evidence on Durst's whereabouts.

Durst had taken a bus from Texas to New York, and four days before Berman's killing he flew on a small private shuttle to the Eureka area in Northern California, where he kept an office and an SUV that he took out of storage, Lewin told jurors.

The next day, December 20, 2000, he used a calling card to check his voicemail messages off a highway 70 miles (112.65 kilometers) to the south of Eureka. His whereabouts were unknown until he bought a late-night plane ticket in San Francisco on December 23, the night after Berman was killed.

Real estate heir Robert Durst, middle, sits with his defense attorneys, David Chesnoff, left, and Dick DeGuerin during his murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020.After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Wednesday, prosecutors will argue Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Real estate heir Robert Durst, middle, sits with his defense attorneys, David Chesnoff, left, and Dick DeGuerin during his murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020.After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Wednesday, prosecutors will argue Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

The mileage on Durst's SUV, which he did not have much access to afterward, was consistent with his having driven to Los Angeles and back to San Francisco, Lewin said.

Lewin then told jurors of evidence familiar to viewers of “The Jinx,” a letter sent to police that had Berman's address and the word “CADAVER” on it. Durst's attorneys conceded in the run-up to trial that Durst had written it but have yet to explain it, and prosecutors played a clip of a Durst interview in which he says only the killer could have written it.

Nine months later while hiding in Galveston, Durst was arrested and charged with the murder of his elderly neighbor Morris Black. At his trial in 2003, Durst told jurors Black had been in his apartment with a gun that went off accidentally during a struggle that killed Black.

Real estate heir Robert Durst sits during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Wednesday, prosecutors will argue Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Real estate heir Robert Durst sits during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Wednesday, prosecutors will argue Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Durst testified that he dismembered the body and threw it in the Gulf of Mexico, but was acquitted.

Los Angeles prosecutors are being allowed to use evidence of Black's killing in the Berman case, and Lewin on Thursday made it clear he essentially intends to show Durst was guilty of murder in that case.

Lewin gave a detailed account of the dismemberment and repeatedly told jurors that Durst “murdered” Black, prompting one of several clashes with Durst's lawyer Dick DeGuerin, who was also his attorney at the Texas trial.

Deputy District Attorney John Lewin speaks during the second day of opening statements of Robert Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin speaks during the second day of opening statements of Robert Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

“Mr. Lewin keeps saying ‘murder,’ he was found innocent of murder,” DeGuerin said.

“He was found not guilty,” Lewin snapped in response.

“There's not much difference," DeGuerin said.

“Oh yes there is!” Lewin shouted.

Deputy District Attorney John Lewin gestures during the second day of opening statements of Robert Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. Lewin gave the jury biographies of Durst and Berman, who met as students at UCLA in the 1960s, casting him as the careless millionaire son of a real estate giant who didn't believe rules applied to him, and her as the daughter of a Las Vegas mobster who learned from her father that nothing was more important than loyalty. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Robert Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. Lewin gave the jury biographies of Durst and Berman, who met as students at UCLA in the 1960s, casting him as the careless millionaire son of a real estate giant who didn't believe rules applied to him, and her as the daughter of a Las Vegas mobster who learned from her father that nothing was more important than loyalty. (Robyn BeckAFP via AP, Pool)

The judge overruled DeGuerin's objection and repeatedly urged the lawyers to calm down.

Real estate heir Robert Durst, far left, sits during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. Defense attorneys, David Chesnoff, top left, and Dick DeGuerin, far right. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Wednesday, prosecutors will argue Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Real estate heir Robert Durst, far left, sits during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. Defense attorneys, David Chesnoff, top left, and Dick DeGuerin, far right. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Wednesday, prosecutors will argue Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. "Bob Durst killed his wife," Deputy District Attorney John Lewin said at one point during his opening statement at the trial of the real estate heir Durst, who is charged only with the murder of his friend Susan Berman in 2000. At right, Los Angeles County Superior Court Judge Mark E. Windham. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles Thursday, March 5, 2020. "Bob Durst killed his wife," Deputy District Attorney John Lewin said at one point during his opening statement at the trial of the real estate heir Durst, who is charged only with the murder of his friend Susan Berman in 2000. At right, Los Angeles County Superior Court Judge Mark E. Windham. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)

Deputy District Attorney John Lewin gestures during the second day of opening statements of Durst's murder trial at the Airport Branch Courthouse in Los Angeles during his murder trial at the Airport Branch Courthouse in Los Angeles on Thursday, March 5, 2020. After a Hollywood film about him, an HBO documentary full of seemingly damning statements, and decades of suspicion, Durst is now on trial for murder. In opening statements Thursday, prosecutors argued Durst killed his close friend Susan Berman before New York police could interview her about the 1982 disappearance of Durst's wife. (Robyn BeckAFP via AP, Pool)