Columbine shooting
An American massicare
What happen inside
These two men set little bombs in the school and and killed students in the school.they went to the front entrance of the school and opened fire in the hallways were they killed and wounded students and teachers.
A sad video
There is a video were there is a kid begging for his/her life to not shoot them but the two men did and after this they killed they're selfs in the library