next, so he phoned his mother, who told him to contact the local police. Kemper did so and waited to be taken into custody. After his arrest, Kemper said that he "just wanted to see what it felt like to kill Grandma", and testified that he killed his grandfather so he would not have to find out that his wife was dead, and that he would be angry with Kemper for what he'd done. Psychiatrist Donald Lunde, who interviewed Kemper during adulthood, wrote, "In his way, he had avenged the rejection of both his father and his mother." Kemper's crimes were deemed incomprehensible for a 15-year-old to commit, and court psychiatrists diagnosed him with paranoid schizophrenia. He was sent to Atascadero State Hospital, a maximum-security facility in San Luis Obispo County that houses mentally-ill convicts. Imprisonment At Atascadero, California Youth Authority psychiatrists and social workers disagreed with the court psychiatrists' diagnoses. Their reports stated that Kemper showed "no flight of ideas, no interference with thought, no expression of delusions or hallucinations, and no evidence of bizarre thinking." They also observed him to be intelligent and introspective. Initial testing measured his IQ at 136, over two standard deviations above average. Kemper was re-diagnosed with a less severe condition, a "personality trait disturbance, passive-aggressive type." Later on in his time at Atascadero, he was given another IQ test, which gave a higher result of 145. Kemper endeared himself to his psychiatrists by being a model prisoner, and he was trained to administer psychiatric tests to other inmates. A psychiatrist later said, "He was a very good worker[,] and this is not typical of a sociopath. He really took pride in his work." Kemper also became a member of the Jaycees while in Atascadero and claimed to have developed "some new tests and some new scales on the Minnesota Multiphasic Personality Inventory," specifically an "Overt Hostility Scale", during his work with Atascadero psychiatrists. After his second arrest, Kemper said that being able to understand how these tests functioned allowed him to manipulate his psychiatrists, admitting that he learned a lot from the sex offenders to whom he administered tests; for example, they told him that to avoid leaving witnesses, it was best to kill a woman after raping her. Release and time between murders On December 18, 1969, his 21st birthday, Kemper was released on parole from Atascadero. Against the recommendations of psychiatrists