Hearing voices makes no sense based on what MSM has reported about the shooter's troubled life.
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he has displayed symptoms of having a personality disorder which are not known to have auditory hallucinations as a symptom
2 psychotic breaks ( hallucinations) don't end as soon as you get arrested returning your behavior to lucid thinking IE: confessing and trying to cut a deal to spare himself from the death penalty
3 most other school shooters have died on scene and intended to
4 no retaliation attempt at the neighbor who 'wronged ' him and kicked him and his brother out