Robert Durst, the New York real estate heir, was sentenced to life in prison in a Los Angeles County courtroom Thursday for the 2000 murder of his longtime friend Susan Berman following a lengthy, drawn-out legal saga.

Los Angeles County Superior Court Judge Mark Windham also denied a defense request for a new trial. The attorneys said they plan to appeal. 

Durst, 78, slouched in a wheelchair and dressed in a brown prison jumpsuit, was convicted last month of first-degree murder for shooting Berman from point-blank range in her Los Angeles-area home just before Christmas. Prosecutors alleged he killed her in an effort to silence her, as she was slated to talk to authorities about how she provided a phony alibi for Durst after his first wife vanished in 1982. 

Kathie Durst went missing from the couple's South Salem, N.Y., home and has been declared dead, though her body has never been found. Durst has never been charged in her disappearance. 

Several of the jurors who convicted Durst were present in the courtroom when the sentence was handed down. Durst declined to give a statement at his sentencing.

ROBERT DURST MURDER TRIAL LAWYER SAYS PROSECUTORS DEMONIZED 'SICK, OLD MAN'

In this still image taken from the Law and Crime Network court video, real estate heir Robert Durst answers questions while taking the stand during his murder trial on Aug. 31, in Los Angeles County Superior Court in Inglewood, Calif. 

In this still image taken from the Law and Crime Network court video, real estate heir Robert Durst answers questions while taking the stand during his murder trial on Aug. 31, in Los Angeles County Superior Court in Inglewood, Calif.  (Law & Crime Network via AP, Pool)

Several of Berman's loved ones gave impact statements, describing her as a warm, loving person who is deeply missed. Sareb Kaufman, who was raised by Berman and considered her his mother, said her death changed his life.

"It has been a daily, soul-consuming and crushing experience," he said during the nearly 90-minute hearing. "Robert Durst was born into a life of luxury and at every option in life, every opportunity … he has been able to do what he wants for almost 78 years, but that wasn't enough for him. His wealth and luxury were used exclusively to serve his darkest, selfish needs."

Berman's cousin, Denny Marcus, told the judge, "I was robbed and my beautiful son was robbed of an absolutely extraordinary, unforgettable brilliant person whose life was savagely taken from her."

While on the witness stand during his trial, a frail-looking Durst claimed he found Berman dead in her home but denied being there at the time of her death. Under cross-examination, he testified that he would lie if he had killed her.  

ROBERT DURST PROSECUTOR COMPARES TESTIMONY TO COCKROACH SOUP DURING CLOSING ARGUMENT

Prosecutors share photo of Robert Durst (left), Susan Berman (middle) and Kathie Durst (right) at Robert Durst's Aug. 11 murder trial.  

Prosecutors share photo of Robert Durst (left), Susan Berman (middle) and Kathie Durst (right) at Robert Durst's Aug. 11 murder trial.   (Fox News)

Prosecutors had presented evidence they say proves Durst killed his wife in an effort to provide a motive for the Berman slaying. They also introduced evidence from a previous trial in which Durst was acquitted of fatally shooting a neighbor in Galveston, Texas. 

Durst was in hiding in Texas to avoid possible criminal charges after investigators reopened the case of his missing wife, prosecutors said. He was living in a boarding house under an alias when he killed Morris Black. 

He was later acquitted of the slaying but convicted of destroying evidence for chopping up Black's body and tossing it out at sea. Prosecutors said Black was killed after he discovered Durst's true identity.

His health has declined in recent years, and Durst was bound to a wheelchair during his trial. When the guilty verdict was announced, he was not in court because he was being quarantined after possibly being exposed to COVID-19

The trial begin in March 2020 but was paused because of the pandemic and resumed in May. 

Thursday's sentencing came years after Durst participated in the 2015 HBO documentary "The Jinx: The Life and Crimes of Robert Durst." In the final episode, Durst was overhead on a hot mic saying: "What the hell did I do? Killed them all, of course."

Robert Durst, center, appears in a courtroom with his attorney, Dick DeGuerin, left, as Judge Mark E. Windham gives last instructions to jurors before attorneys begin opening statements in his murder trial. 

Robert Durst, center, appears in a courtroom with his attorney, Dick DeGuerin, left, as Judge Mark E. Windham gives last instructions to jurors before attorneys begin opening statements in his murder trial.  (Al Seib/Los Angeles Times via AP, Pool)

CLICK HERE TO GET THE FOX NEWS APP

He later claimed there was a misunderstanding and that he either spoke too softly for the mic or it failed to utter what he was thinking. Westchester County, New York, prosecutors plan to impanel a grand jury in the coming weeks to hear evidence against Durst in the disappearance of Kathie Durst. 

Before the sentencing, lead prosecutor John Lewin urged Durst to reveal what happened to Berman, his wife and Black. 

"Mr. Durst is certainly never going to see the light of day again," Lewin told the court. "All we can hope, your honor, is that listening to the passionate statements of the people that he's hurt, that maybe he says to himself, ‘You know what? I’m old, and I don't know how much time I have left and I want to actually do something selfless. I want to do the right thing and admit what happened with Kathie … what happened with Susan. What happened with Morris."