Given the task definition and input, reply with output. In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

Two days after celebrity publicist Ronni Chasen was gunned down in Beverly Hills, a source reveals that her killing may have been planned. Christine Pelisek on Chasen's last hours. 
  
 The Beverly Hills Police Department is dedicating almost half its team of detectives to investigate the shooting death of veteran celebrity publicist Ronni Chasen, who was gunned down on a quiet tree-lined street in Beverly Hills early Tuesday morning. According to sources close to the investigation, eight of the city’s 19 detectives are working on the bizarre case. 
  
 Chasen was fatally shot as she was driving home to Westwood from an afterparty for the premiere of the Cher movie Burlesque at the W Hotel in Hollywood. She attended the party with her songwriter client Diane Warren and hobnobbed with her usual pals, celebrities and agents. 
  
 Ronni Chasen with the actor Morgan Freeman on Feb. 6, 2005. (Photo: John Heller, NFL / Getty Images) 
  
 Friends said Chasen left the party shortly after midnight. She traveled down Sunset Boulevard before making a left on North Whittier Drive, a quiet street with million-dollar mansions. A few minutes later, shots rang out into the night. Chasen was found slumped over the steering wheel of her Mercedes coupe, suffering from gunshot wounds. Her car had collided with a light post. Her passenger side window was shattered. Paramedics took her to Cedars Sinai Hospital, where she died of her injuries about an hour later. 
  
 Two days later, Chasen’s death is still a mystery. Detectives have no motive or clue why anyone would want to kill Chasen, who worked in Hollywood for more than 40 years. “No one would be angry with Ronni,” said Caroline Graham, Chasen’s longtime friend. “Her clients adored her.” 
  
 But police are keeping their options open. Questions remain. Was the 64-year-old agent killed in an act of road rage? Was she followed from the W Hotel? Was she targeted, as some bloggers have suggested? Was she robbed? 
  
 “We haven’t ruled out anything,” said Beverly Hills Police Department Sgt. Lincoln Hoshino. “It is a wide-open investigation. We just don’t know. It is a big whodunit.” 
  
 “We have no suspect or no leads in this case at this point,” he said. “We don’t know if the window was shot out or broken as a result of the accident.” 
  
 “It is a wide-open investigation. We just don’t know. It is a big whodunit,” said Beverly Hills Police Department Sgt. Lincoln Hoshino. 
  
 Chasen, a fast-talking New Yorker with a quick wit, represented a number of A-list stars and filmmakers, including the late Natalie Wood and Jaws producer Richard Zanuck. She began her career in 1973, worked at Rogers & Cowan, and ran publicity at MGM before she formed her own company, Chasen & Co. Over the years, she worked on the marketing campaigns for Lolita, the Oscar-winning Driving Miss Daisy, Wall Street: Money Never Sleeps, and Tim Burton’s Alice in Wonderland. 
  
 Hoshino said detectives now believe that Chasen—who called her assistant and left a message about six minutes before the shooting—was hit before her car collided with the light post. However, detectives are hampered by a lack of eyewitnesses. “There are no witnesses that we are aware of,” he said. 
  
 • Ronni Chasen’s Stricken Colleagues Speak Out 
  
  
  
 • Caroline Graham: Ronni Chasen, Hollywood Wonder WomanBut there is a lot of speculation. “Whittier Drive is a pass-through street,” said Beverly Hills attorney Gina Hope, who lives nearby. “This is one of the safest streets. I don’t think it was road rage. This street is dead after 6. There is nobody around late at night. It seems to me it is pretty much, ‘I want you dead.’” 
  
 In a bid to help out the police department, friends and colleagues of Chasen are banding together. On Wednesday, the Palm Springs International Award Gala and Film Festival offered a $100,000 reward for information leading to the arrest and conviction of the person responsible for Chasen’s death. 
  
 Detectives were seen Wednesday canvassing the Whittier Drive neighborhood seeking video surveillance footage from residents, while others were looking for clues at the W Hotel and at Chasen’s high-rise condominium on Wilshire Boulevard in Westwood, about a five-minute drive from where she was shot. ||||| Beverly Hills detectives investigating the slaying of Hollywood publicist Ronni Chasen believe she was shot moments before her car crashed and came to rest off Sunset Boulevard early Tuesday.Authorities on Wednesday stressed that they have few leads in the case and that the motive for the attack is unclear. But they are focusing heavily on forensic evidence gathered from the spot where Chasen was found shot several times in her Mercedes coupe. Residents who heard the crash found Chasen slumped over the steering wheel bleeding, with the passenger-side window of her car shattered.Beverly Hills police Sgt. Lincoln Hoshino said that while investigators are not sure exactly where the shooting occurred, their working theory is that it happened before the crash. Police are also trying to determine whether the shattered window was caused by gunshots or by some other type of force.One resident who lives near where Chasen's car came to rest said she heard several shots, followed moments later by what she believed was the sound of a car crashing. The woman, who spoke on the condition of anonymity, said she and several other people raced outside to see Chasen's car crashed into a light pole.At least two witnesses have said the interior of Chasen's car appeared to have little visible damage or evidence of gunshots. Moreover, they said they noticed no bullet casings either near the car or inside it. Police would not say whether shell casing were found at the scene.Calling the investigation "wide open," detectives are also seeking video surveillance footage from businesses and residents along Sunset Boulevard, hoping it might shed light on what happened.Chasen had attended an after-party following the premiere of the movie "Burlesque" at the W Hotel in Hollywood. She is believed to have left the event for home sometime around midnight, traveling west on Sunset Boulevard. Friends believe that she had planned to swing south to her condominium on Wilshire Boulevard near the grounds of the Los Angeles Country Club.The 6-mile drive would have taken Chasen along the Sunset Strip, an area potentially stocked with surveillance video from clubs and restaurants as well as mansions with sophisticated security systems. That could allow investigators to pick up a crucial clue.In examining video, investigators face potential challenges. Some cameras work better in the day than at night. Even cameras that can pick up images at night can be blinded by bright light. Some cameras may have blind spots, and video quality is often poor.Chasen, 64, was found shot multiple times at the intersection of Whittier Drive and Sunset Boulevard near the border of Beverly Hills and the city of Los Angeles about 12:30 a.m. Tuesday. She was pronounced dead at Cedars-Sinai Medical Center about an hour later, officials said.Investigators spent much of the day removing potential evidence from Chasen's Westside condominium, including hard drives, compact discs and file boxes. Investigators also scoured her Westwood public relations company for similar evidence. It's unclear whether any of those searches yielded evidence. |||||

The death of celebrity publicist Ronni Chasen is a real-life Hollywood murder mystery, and police are stumped. Nearly half of the Beverly Hills Police Department is working on the case, the Daily Beast reports, but they have little evidence, no motive, and no witnesses. Chasen was found fatally shot in her car—witnesses reported hearing five shots, the New York Times reports—which had crashed into a light post on a street full of million-dollar mansions. The passenger side window was shattered, but police aren't sure if that was the result of the accident, the gunshots, or some other force, the Los Angeles Times reports. Oddly, there was no other gunshot damage to the car, and no bullet casings were found. Chasen had been at an afterparty for the premiere of Burlesque, which she left shortly after midnight, and she had called and left a voicemail to-do list for her assistant just six minutes before the shooting. Police believe Chasen was shot before hitting the light post, but beyond that, many questions remain: Was it road rage? A carjacking? Was she followed? Was the culprit in the car with her? Was she targeted? Was it a robbery? Friends and colleagues are offering a $100,000 reward in an effort to glean more information, and detectives are looking for video surveillance from nearby homes, clubs, and restaurants.