How We All Miss the Point on School Shootings
Both Harris and Rodger had the police called on them multiple times due to suspicious behavior. Both of them had a history of strange and violent outbursts towards friends and those close to them. Both put their intentions and their angry rants up on the web for everyone to see. Elliot Rodger wrote and re-wrote his plan out, sometimes including murdering his family members and stealing their car. He wrote that if someone had just searched his room, it would have all come apart, he would have been found out. Eric Harris wrote almost the exact same thing 15 years earlier.
Seung-Hui Cho, the Virginia Tech shooter who killed 32 people, turned in paper after paper that depicted gruesome killings and gun violence. He had a history of mental health issues and had been reported to the campus police four times for aggressive and antisocial behavior, particularly towards women. One of his professors went so far as to tell the board that she would rather resign than teach another class with him in it.
Adam Lanza, the Sandy Hook shooter, also had a history of mental illness and inappropriate anti-social behavior. And he too, began sharing his intentions online through forum posts and audio. Lanza had paranoid delusions about mass media and the government, and began to argue that school shootings were justified as a form of protest or revolt. People humored him and ignored him. No one realized he had a small armory of semi-automatic weapons in his house.