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Hundreds mourned the death of Ronni Chasen, whose funeral was held Sunday, five days after the well-known Hollywood publicist was shot and killed inside her Mercedes-Benz.
Chasen, a 64-year-old veteran publicist, was killed early Tuesday after attending the premiere of the new Cher film "Burlesque," whose soundtrack she was pushing for an Oscar nomination.
On Sunday, hundreds of mourners, including Chasen's Oscar-winning clients, gathered for her funeral at Hillside Memorial Park and Mortuary in Los Angeles.
Sgt. Lincoln Hoshino of the Beverly Hills Police Department told FoxNews.com on Sunday that authorities are still searching for clues in the case and that no suspects have been identified.
Chasen was gunned down around 12:28 a.m. inside her Mercedes-Benz E-350 sedan before crashing into a lamp post near the intersection of Sunset Boulevard and Whittier Avenue in Beverly Hills. Police found the front passenger-side window of her vehicle shattered.
Some residents of the neighborhood said they heard gunshots followed by a loud noise they described as a "boom," but none have reported seeing any people or vehicles near the crash site.
Chasen, who had multiple gunshot wounds to her chest, was taken by ambulance to Cedars-Sinai Medical Center, where she was pronounced dead.
Police sources say they believe Chasen was shot as she was waiting to make a left turn from Sunset Boulevard on to Whittier Drive.
Hoshino said the intersection "had a red-light camera" was but it was "not active" at the time of the incident. Red light cameras are programmed to take photographs only when a driver illegally passes through a red light.
Hoshino also said detectives have retrieved video surveillance from multimillion-dollar mansions alongside Sunset Boulevard, but declined to say whether the footage has yielded any clues.
Beverly Hills Mayor Jimmy Delshad told reporters that he believes the shots that killed Chasen were fired from an SUV. But Hoshino said that such a scenario is not confirmed by police, and that the theory is just one among many.
"It’s not even one of our theories," Hoshino told FoxNews.com. "It’s his theory. It’s just pure conjecture."
Hoshino also said investigators are looking into a report from the New York Post, claiming Chasen suspected she was being followed as far back as March.
The unnamed source reportedly told the newspaper: "Ronni said in March she suspected she was being followed, but didn't know by whom. She said she was scared. Some people close to her believe it was a hit, but nobody knows why."
A $125,000 reward is being offered for any information leading to the arrest and conviction of the person responsible for Chasen's death.
The Beverly Hills Police Department is urging anyone with information on the crime to call the detective tipline at 310-288-2656.
FoxNews.com's Cristina Corbin contributed to this report