A psychiatrist who treated the man on trial for killing his father and opening fire at Orange High School in August 2006 testified Monday that Alvaro Castillo was not psychotic while she treated him in the months prior to the incidents.

Karen Graham said she met with Castillo on multiple occasions from April to June of 2006. Graham said Castillo was admitted to the psychiatry clinic at the University of North Carolina-Chapel Hill on April 20 for a suicide attempt and holding a gun to himself.

Graham said they ran tests on Castillo and found he had and anxiety disorder, but did not appear to be psychotic. Castillo has pleaded not guilty by reason of insanity at the time of the crimes.

"When we first interviewed Mr. Castillo we asked him questions about the suicide attempt -- what the stresses were that led up to it; and at that time he consistently said he didn't want to go back to the National Guard. That was the trigger and he would not go back," said Graham.

Graham said Castillo denied having hallucinations, did not mention any obsession with the Columbine shootings and had no real homicidal thoughts. 

"He talked about murderous fantasies and he would repeatedly say that that was a fantasy, that was what he was thinking. He didn't have intent; he wasn't going to do that," said Graham. "He felt compassion for people at Columbine and he consistenly said he wasn't thinking of killing or hurting anyone else."

In home videos Castillo made in the months leading up to the shootings he repeatedly talked about his fear of people watching him, how he was obsessed with Columbine, and how he felt God told him to "sacrifice" his father and students at Orange High School to save them.

Graham said Castillo was concerned there were cameras in the corners of rooms or in vents, but he was never sure.

"And that's the distinction between whether something's delusional, which is fixed, and whether something is not and more of a concern or worry," said Graham.

Graham said more psychology tests were done on Castillo which revealed he had an anxiety disorder as well as depression. She said he also exhibited some signs of schizophrenia.

When Castillo was discharged from UNC, he and his family were told he should not have access to or buy any weapons. Castillo was then sent to the Oasis Clinic in Orange County. At that time, Graham said Castillo's obsessions had cleared, he had no homicidal thoughts, was sleeping well and had good energy and concentration. 

"A lot of things were improved compared to when he came into hospital," said Graham.

Graham continued to meet with Castillo after he was transferred from UNC to the Oasis Clinic. She said he was not suicidal and did not exhibit signs of being psychotic.

"His mood was brighter, he was getting along well at work and home, his parents were supportive, and the relationship between he and his sister had gotten closer," said Graham.

Witness testimony is still underway. 

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