Crime Robert Durst Found Guilty of Murdering Best Friend Susan Berman to Cover Up Wife's Disappearance Robert Durst was convicted of the execution-style killing of Susan Berman, who was found dead inside her Beverly Hills home in 2000 By Christine Pelisek Published on September 17, 2021 07:03 PM Share Tweet Pin Email Susan Berman and Robert Durst. Photo: HBO Robert Durst, the eccentric real estate scion millionaire, has been found guilty of first-degree murder in the 2000 execution-style killing of his best friend, Susan Berman. A Los Angeles jury handed down the verdict on Friday, more than 20 years after Berman was found dead inside her Beverly Hills home in 2000. Prosecutors said Durst, now 78, killed Berman, a writer whose father was a Las Vegas mob boss, because she knew too much about the disappearance of his first wife Kathleen, who was last seen alive on January 31, 1982. Prosecutors alleged Berman was not Durst's only victim, saying he killed both Kathleen and Morris Black, his then-neighbor in Galveston, Tx., in 2001. Durst was acquitted of Black's murder when he claimed self-defense, saying Black pointed a gun at him and that Black was killed during a struggle for the weapon. Robert Durst. ETIENNE LAURENT/EPA/Shutterstock Want to keep up with the latest crime coverage? Sign up forPEOPLE's free True Crime newsletter for breaking crime news, ongoing trial coverage and details of intriguing unsolved cases. "When Bob Durst killed Kathie, he killed Susan and Morris as well because once that happened, once he did that, there was no turning back," Los Angeles County Deputy District Attorney John Lewin told jurors during the first week of trial. "Bob Durst is a person who is going to protect and take care of Bob Durst." Brother of Robert Durst's Missing First Wife Claims He Was Abusive: 'There's No Doubt' He Killed Her Over 100 people testified during the trial, including Durst's estranged brother Douglas, HBO's The Jinx filmmakers Marc Smerling and Andrew Jarecki and comedian Laraine Newman, a friend of Berman's. Kathie and Robert Durst. HBO Robert Durst Claims He Was High on Meth During Some Interviews for HBO's The Jinx Berman's body was found in the bedroom of her Beverly Hills home around noon on Dec. 24, 2000, after a neighbor reported her dogs were loose. She had been fatally shot in the back of the head. Officers determined there was no forced entry or signs of ransacking or a struggle. Her purse, with her ID and her cash inside, was sitting on the kitchen counter. During opening statements, Lewin said Berman knew her killer and let him inside. Berman, Lewin said, was a "paranoid New Yorker" who would have never opened her door to a stranger. Robert Durst's Estranged Brother Testifies at Trial: 'He'd Like to Murder Me' "She was murdered by someone she truly trusted," said Lewin. For decades, Durst denied he was ever in Los Angeles around the time of Berman's slaying. But later, his attorney, Dick DeGuerin, admitted that he was in Los Angeles and had plans to spend the holidays with Berman when he found her dead. "When Bob showed up and found her dead he panicked," DeGuerin said. "He wrote the anonymous [cadaver] letter so her body would be found, and he ran. He ran away all of his life." Robert Durst Pleads Not Guilty in Murder Trial — as Prosecutors Won't Seek Death Penalty DeGuerin said Durst denied killing Berman. Durst's trial, which began in March 2020, was postponed during the COVID-19 pandemic and resumed again in May 2021. There was a brief pause in the trial in June because of Durst's ongoing health issues. His lawyers asked the judge for a mistrial because of his medical condition but the judge denied the request. Kathleen's family reacted to the conviction Friday in a statement obtained by PEOPLE: "Not a single day goes by that we do not think about our beautiful, smart, and kind sister, Kathleen. Today, more than ever before, it is clear that she was murdered by Robert Durst in Westchester County, New York on January 31, 1982. The evidence is overwhelming. "Although Durst has now been rightly convicted of killing Susan Berman, who helped him conceal the truth about Kathie's death, the McCormack family is still waiting for justice. Kathie is still waiting for justice. "The justice system in Los Angeles has finally served the Berman family. It is now time for Westchester to do the same for the McCormack family and charge Durst for the murder of his wife, Kathie, which occurred almost forty years ago. "They have had interviews, statements, and documents for months. The closing arguments by the Los Angeles Deputy District Attorneys should remove any doubt. It's bizarre and unacceptable that Durst was tried for killing an accomplice before being held accountable for Kathie's murder."