Duty to warn is embedded in the historical context of two rulings (1974 and 1976) of the California Supreme Court in the case of "Tarasoff v. Regents of the University of California". The legal case was brought by the Tarasoff family after their daughter, Tatiana Tarasoff, was murdered by Prosenjit Poddar, who had received psychological services in the university counseling center. Poddar had made it known to his psychologist, during a session, that he wanted to kill Tarasoff, and his psychologist informed the campus police, following the session, of the danger that Poddar posed to himself and others and suggested that hospitalization might be necessary. The psychologist also wrote a letter requesting assistance to the chief of campus police. Upon investigation by the police, during which Poddar was briefly detained for questioning, he was released because his mental state seemed to be stable and rational. Shortly thereafter, the director of the department of psychiatry at Cowell Hospital asked for the police to return the letter and ordered that Poddar's therapy notes should be destroyed. No one ever warned Tatiana Tarasoff. Poddar killed Tatiana Tarasoff on October 27, 1969, and her parents filed suit against several of the organizations and individuals who had been involved. The case was initially dismissed by a lower court, but her parents appealed to the California Supreme Court, which upheld the appeal in 1974 and reaffirmed the ruling in 1976. The case was settled out of court when Tarasoff's parents received a substantial sum of money.