There are two types of mass murderers, organized and disorganized. An example of an organized mass murderer is Eric Harris and his friend Dylan Klebold. They killed thirteen people and wounded more than twenty others at Columbine High School on April 20, 1999 (“Eric Harris”). In the biography of Harris, they called him a psycho, which falls under the subcategory of an organized murderer known as a disciple killer. Disciple killers are known to follow commands or fall under a ‘spell’ of their leader. For example, in Mexico, there are drug dealers that send people to kill their enemies. Harris and his friend were carefully planning the attack for a while, which places them under the organized category also known as pseudo commandos. There are