What happened in high school columbine?

One of the worst school shootings in history took place there. In fact, it was THE worst school shooting until Virginia Tech happened in 2007.

Two boys, Dylan Klebold and Eric Harris, killed 15 people (including themselves) and wounded 24 people.

It's hard to say why they did it, but we can guess that they were mentally disturbed, bullied to the point of lashing out in hatred, and that they hated humanity. They also say that the reason they did this is because nobody wanted to be there fried because they were weird so they told this friend not to come to school cause they did not want her to die cause they liked her