School Shooting

School shooting occurs when students, especially those who are bullied or other lone gunman take firearms to a particular school and begin shooting people indiscriminately.

This act is especially common in the united states, but it can occur in other places as well.

It manifests as a kid simply shooting a person in revenge to large scale school bombings and mass shootings.

After shooting up a school, preparators often commits suicide, although some surrendered to police.

Also, suicidal school shooters typically made martyrdom videos, usually explaining their act and ranting about bullies.

Causes(From most common to least common)
Bullying(peer victimiazation, peer pressure, cyber bullying)

Revenge against teachers for punishing the shooter unfairly

Being expelled from the school

Mental illness(sometimes without cause)