There is something this discussion missed. The shooter had created the circumstances for Subliminal Distraction exposure.
There is a simple problem with human physiology that was discovered when it caused mental breaks for office workers. The cubicle was designed to deal with the vision startle reflex to stop the problem in business offices by 1968.
I have a letter from the President of Virginia Tech assuring me that this problem would be investigated. But if Subliminal Distraction was the cause it places blame on the school for the shooting.
They should have investigated when students across the country started disappearing and committing suicide in bizarre ways. Brian Shaffer and Maura Murray are two examples.
Ahmad Arain, UCLA, was found in Mexico in an altered mental state.
Some Subliminal Distraction victims react in fear by running or suicide, others act out the delusions with violence.
VisionAndPsychosis.Net is a five year investigation of Subliminal Distraction. Prevention of exposure is simple and FREE.