Columbine High School Massacre

The fourth-deadliest school killing is occurred by Eric Harris and Dylan Klebold at Columbine High School massacre. This incident seems to be elaborately prepared by two people, who have various weapons such as two 9mm firearms and two 12-gauge shotguns, pipe bomb and semi-automatic carbine, record and wrote their plans and their massage. They attempted to begins shooting in cafeteria (afterward, they moved into library to kill people) Also while they shoot gun, they killed cruel methods. For example, when a person struggled down the steps towards the bottom of the staircase, Klebold walked up to him and shot him in the back at close range. They then threw bomb in the Library Hallway, whose way is used by two guys when entering into cafeteria, 52 students, 2 teachers, and 2 librarians were hiding under to computer desk. After two guys saw police evacuating students, they began to shoot to policeman, who returned fire. They continued to kill students under the computer desk. At this point, there is one argument about "Do you believe in God?" Each student have different opinions and it caused many debates as to whether the official investigation thoroughly assessed all possibilities. This brutal massacre ended at 11:42 a.m. After at 11: 42, two men wandered around, indiscriminately, aimlessly shooting. The shooters re-entered the library and they shot themselves. Finally, two guys not only killed 12 students and a teacher, but also wounded 23 others in this accident.

A great deal of debate occurred about the killers' motivation and whether anything could have prevented the crime. Also this incident caused people to discuss about gun control laws, the availability of firearms in the United States, and gun violence involving youths. In response to concerns over the causes of Columbine and other school massacres, many schools instituted new anti-bully policies as well as so-called "zero tolerance" approaches to weapons and threatening behavior.