Dr. Hans Steiner, a Stanford University psychiatrist who testified for the prosecution, said Treacy's calls and texts clearly showed that he knew his planned actions were wrong and that there would be serious consequences.
"He's spelling out what he's going to do. He's spelling out that he is going to jail because of it. He knows he's going to go away. He knows this is not going to end well," Steiner testified.
Treacy chose not to take the stand in his own defense. Ratley, who suffered permanent brain injuries, also did not testify.
A defense psychiatrist, Dr. Alexander Neumeister, testified that Treacy was in a "dissociative state" after getting Ratley's text in which he had little mental control over his actions, especially once Manson pointed out Ratley in her red shirt at the school's bus loop.
"He saw something red and then he was on autopilot," Neumeister testified. "There is no way that he knew what he was doing."
Manson is charged as a juvenile with being an accessory to attempted first-degree murder and faces an August trial.
Associated Press writer Suzette Laboy in Fort Lauderdale contributed to this story. Follow Curt Anderson on Twitter: http://twitter.com/Miamicurt
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