In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

LOS ANGELES (AP) — Santa Barbara County sheriff's deputies who checked on Elliot Rodger three weeks before he killed six college students were aware he had posted disturbing videos but never viewed them before or after determining he was not a threat to himself or others, the department disclosed Thursday. 
  
 The statement from the sheriff's office corrected an earlier assertion that deputies were unaware of the videos when they checked on him on April 30. It also provided new details on the sequence of events during that pivotal visit to Rodger's apartment, a time when he was planning the rampage that would end with him apparently taking his own life after being wounded by police. 
  
 The guns he used in the killings last Friday were stashed inside his apartment at the time, but police never searched the residence or conducted a check to determine if he owned firearms because they didn't consider him a threat. 
  
 The statement does not explain why the videos were not viewed or whether the deputies knew anything about the contents beyond a description of them being "disturbing." 
  
 The sheriff's department also revealed new details about the timeline leading up to the killings. It said Rodger uploaded his final video to YouTube, titled "Day of Retribution" and detailing his plans and reasons for the killings, at 9:17 p.m. on the day of the shootings. One minute later, he emailed a lengthy written manifesto to his mother, father and therapist that also detailed his plans and contempt for everyone he felt were responsible for his sexual frustrations and overall miserable existence. 
  
 The first gunshots were reported at 9:27 p.m. The rampage was over and Rodger dead just eight minutes later. 
  
 It was another 25 minutes before the therapist saw the emailed manifesto and 11 more minutes until the sheriff's office was contacted at 10:11 p.m. 
  
 The timing indicates that Rodger stabbed to death three people in the apartment sometime earlier — his two roommates and a third man who might have been another roommate or a visitor at the time of the attack. 
  
 Rodger wrote in the manifesto about the April 30 visit by the deputies and said it prompted him to remove most of his videos from YouTube. He re-posted at least some of them in the week leading up to the killings. He wrote that the deputies asked him if he had suicidal thoughts, but "I tactfully told them that it was all a misunderstanding and they finally left. If they had demanded to search my room that would have ended everything." 
  
 According to the statement from the sheriff's office, four deputies, a police officer and a dispatcher in training were sent to Rodger's apartment after being informed by the county's mental health hotline that Rodger's therapist and mother were concerned about videos he posted online. 
  
 The visit lasted about 10 minutes, during which officers found him shy and polite. The deputies questioned him about the videos. Rodger told them he was having trouble fitting in socially and the videos were "merely a way of expressing himself." 
  
 Like many other states, California has a law intended to identify and confine dangerously unstable people before they can do harm. It allows authorities to hold people in a mental hospital for up to 72 hours for observation. 
  
 Because the deputies concluded Rodger was not a threat to himself or others, they never viewed the videos, searched his apartment or conducted a check to determine if he owned firearms, the statement said. 
  
 That sequence of events is different from a statement Sunday from spokeswoman Kelly Hoover, who said "the sheriff's office was not aware of any videos until after the shooting rampage occurred." 
  
 In a typical mental-health check, only two deputies would be dispatched. But deputies who were familiar with Rodger as a victim in a January petty theft case were in the area and also decided to go to his apartment. 
  
 Hoover did not respond immediately to an email seeking more information on why the deputies didn't watch the videos, the content of the videos and what specific information was relayed from the mother that prompted the check at his apartment. ||||| Sheriff's deputies who conducted a welfare check on Elliot Rodger less than a month before his deadly rampage in Isla Vista knew of "disturbing" videos Rodger posted online but did not watch them, officials said. 
  
 Santa Barbara County sheriff's officials released new details Thursday about the April 30 welfare check, which is part of the investigation into the May 23 attack that left six UC Santa Barbara students dead and 13 other people injured. 
  
 Four deputies, a UC Santa Barbara police officer and a dispatcher in training went to Rodger's apartment on the night of April 30 for the welfare check, officials said Thursday. 
  
 The visit occurred after a person who identified himself as a friend of Rodger called a county mental health staff member. Based on that call and information from Rodger's mother, sheriff's officials said, the staffer requested the welfare check. 
  
 Sheriff's officials did not detail what information the deputies had when they made the visit. But a Rodger family friend told The Times that his mother had contacted his therapist in April, concerned over bizarre videos her son had posted on YouTube. The family friend said the therapist contacted a mental health service, who referred the matter to police. 
  
 The Sheriff's Office did not detail the content of the videos, describing them only as "disturbing." It’s unclear whether the videos posted back in April included some of the recordings Rodger posted on YouTube on the day of the rampage. The family friend said the videos Rodger's mother saw in April were less menacing than the now-infamous video he posted May 23 in which he threatens violence. 
  
 Typically, only two deputies respond to welfare checks, sheriff's officials said. But the group who went to Rodger's Seville Road apartment included deputies who were "familiar with Rodger" from a January incident, when he accused his roommate of stealing $22 worth of candles. 
  
 When the group spoke to the 22-year-old outside his apartment, the department said, he was "shy, timid and polite." 
  
 "When questioned by the deputies about reported disturbing videos he had posted online, Rodger told them he was having trouble fitting in socially in Isla Vista and the videos were merely a way of expressing himself," the statement said. 
  
 "Based upon the information available to them at the time," the statement continued, "sheriff's deputies concluded that Rodger was not an immediate threat to himself or others, and that they did not have cause to place him on an involuntary mental health hold, or to enter and search his residence. Therefore, they did not view the videos or conduct a weapons check on Rodger." 
  
 One of the deputies called Rodger's mother and, after briefing her on the interaction, passed the phone to Rodger, officials said. Rodger "told her he was fine and that he would call her later." Deputies gave Rodger contact information about local services he could use "if he needed help," and left. 
  
 The interaction lasted about 10 minutes, officials said. 
  
 Sheriff's officials have remained tight-lipped about the rampage, calling it "one of the most complex investigations" in the department's history. But they said Thursday that based on the information reviewed so far, "the deputies who responded handled the call in a professional manner consistent with state law and department policy." 
  
 Rodger wrote of the April 30 interaction in a 137-page document in which he outlined what he called his "Day of Retribution," saying he had three semiautomatic weapons hidden in his bedroom at the time and had written up plans for the assault. 
  
 "I tactfully told them that it was all a misunderstanding, and they finally left. If they had demanded to search my room ... that would have ended everything," he wrote. "For a few horrible seconds I thought it was all over. When they left, the biggest wave of relief swept over me." 
  
 Rodger wrote that he immediately took most of the videos off YouTube, but planned to restore them before his attack. 
  
 Some law enforcement and mental health experts questioned why officials didn't review the video during the April 30 check. 
  
 "If somebody was concerned about them enough to report them it would seem to me to be part of the checkup," said Ann Eldridge, vice president of the local chapter of the National Alliance on Mental Illness. 
  
 Although seeing the videos might not have changed the outcome, it would have been part of a thorough investigation, said Rick Wall, a former Los Angeles police captain who oversaw that department's mental health team. 
  
 Authorities say that Rodger fatally stabbed three men — Cheng Yuan "James" Hong, 20, George Chen, 19, and Weihan "David" Wang, 20, all students at UC Santa Barbara —- inside his apartment before driving his BMW down the streets of Isla Vista on May 23, , firing out the window and veering his car toward pedestrians. Three other UC Santa Barbara students were killed: Katherine Cooper, 22; Veronika Weiss, 19; and Christopher Michaels-Martinez, 20. Authorities say Rodger took his own life. 
  
 kate.mather@latimes.com 
  
 richard.winton@latimes.com 
  
 adolfo.flores@latimes.com |||||
Police are now confirming they were aware as early as late April that Elliot Rodger posted "disturbing" videos online, but didn't watch them, even after a visit to Rodger's apartment weeks before the Isla Vista shooting. Four deputies, a UC Santa Barbara police officer, and a dispatcher in training visited Rodger for a welfare check on April 30. How officials are explaining their actions, per a statement from the sheriff's office: They say Rodger was "shy, timid, and polite" during the 10-minute visit and was deemed "not an immediate threat to himself or others." "Rodger told them he was having trouble fitting in socially in Isla Vista and the videos were merely a way of expressing himself," the statement reads. "They did not have cause to place him on an involuntary mental health hold, or to enter and search his residence. Therefore, they did not view the videos or conduct a weapons check." This admission corrects a statement issued Sunday that said "the sheriff's office was not aware of any videos until after the shooting rampage," the AP notes. In his manifesto, Rodger wrote that he deleted the majority of the videos—which the Los Angeles Times reports weren't as sinister as the one he uploaded before the shooting—from YouTube after the check, but he re-posted at least some of them in the week leading up to the killings.