Who is the Bully?
Modern day technology affords bullies the opportunity to victimize a larger population in the presence of a large audience. While some do not know they are being bulling, others intentionally harm their victim. They target their victim based on an imbalance of power, whether that be size, age, or position .
There are a certain number of traits that bullies possess. The traits include:
Many people believe that bullies have low self-esteem but that is not always the case. They can be average students, leaders, or the popular child in the school. Each bully is different just like each case of bullying is different.
Bullies have the tendency to be involved in more criminal matters later in life. These include:
Bullies are also more likely to bully their siblings. 
Why Children Bully
There are multiple reasons why children bully other individuals. These reasons include:
Individuals can bully others for one reason or multiple reasons. Each incident is on an individual basis.
Check out this website for more information on children who bully: http://www.maskmatters.org/educate/high-school/cyber-bullying