At 9 a.m. on October 4, 1969, Linkletter jumped out of a window of her sixth-floor apartment at the Shoreham Towers in
West Hollywood, California. She was first taken to Hollywood Receiving Hospital, then to
LAC+USC Medical Center where she died of injuries she sustained in the fall. Her father blamed her death, which the media widely reported at the time, on drug use, specifically
LSD. Edward Durston, the last person known to have seen Linkletter alive, said that he had attempted to grab her, but she had jumped over the balcony. Durston was also the last person to see the actress
Carol Wayne alive 16 years later, who disappeared after an argument with him. The day after Linkletter's death, Art Linkletter held a press conference where he stated that his daughter's death "wasn't a suicide. She was not herself. She was murdered by the people who manufacture and distribute LSD." He also stated that Linkletter had used LSD in the six months prior to her death and the two discussed a "
bum trip" she had experienced. Although Linkletter had not spoken to Diane in the last twenty-four hours of her life, he believed that she had taken LSD the night before her death and had experienced another bad trip which caused her to leap to her death. A police investigation was launched to determine the events surrounding Linkletter's death. Police questioned Edward Durston, who said that Linkletter had phoned him the night before her death and "was very upset" and asked him to come over. He went to Linkletter's apartment at around 3 a.m., and the two stayed up all night talking. He said that Linkletter's behavior was "extremely emotional, extremely despondent and very irrational at times, in fact most of the time." ==Aftermath==