Fox's lone rebuttal witness, Kris Mohandie, a criminal psychologist who has studied school shootings and other violent acts, testified, countering what psychologist Donald Hoagland said for the defense last week.
The fact that McInerney was calm as he planned the shooting the night before and stole the gun from his grandfather's bedroom shows he was well aware of what he was going to do, he said.
He said McInerney had many of the symptoms of conduct disorder, which include acts of violence, bullying, cruelty to animals and fighting.
There are two kinds of violence, he said, predatory and affective. Predatorial is more akin to a proactive, planned act, like to a cat planning and stalking its prey. Affective is the instinctive reaction to an immediate threat, like a cat arching its back when it is threatened
