School Shootings: Where do they originate from?

In the last decade, school shootings have occured more then ever. The most impacting being the Virginia Tech Alumni who killed 33 including himself. But where do these shootings originate from? What leads these once "normal" people to murder? Most of the time its because of how other people act towards them. Teasing and bullying are some of the reasons why these incidents occur. Not only is the person who shot responsible, but everyone who teased that person is responsible as well. If that Virginia Tech student hadnt been teased and bullied those 33 people wouldnt have been dead. Of course, not everyone of these school shootings happened because of teasing; some of course were just made out of pure insanity and hatred. What i am getting to is that people need to come to their senses and stop doing what they are doing, which is judging people because of there looks, but not only judging them, also teasing them and doing it publicly, making others feel embarresed and hurt, which at the end leads to tragic things like of course school shootings. If you really think about it, most murders happen because of embarresment. If a wife catches her husband cheating on her, yes she is hurt, but she is also embarresed that this happened to her which could lead to killing her husband or the person he cheated with. This is the same thing with school shooters. When they are teased, they get embarresed. They dont have anyone to talk to because everyone is making fun of them, so all the emotion locked inside causing them to do crazy things. I say that if a student shoots 10 people at a school because he was teased, then all those people who teased him are Murderers as well as the actual murderer himself. We need to stop what we are doing and head toward a better future. We can't have all these school shootings.
If you are one of the people who makes fun of someone because of how they are, just stop doing it or you could be sorry. If you are one of the few people in this new world who dont misjudge, talk to those people being teased, becoming not nessesarily "best friends" with them, but at least make sure they arent isolated from everyone else. The world is heading Down and we need to try to pull it the opposite way.