In 2005, Jeffrey Weise, a student at Red Lake High School in Minnesota, killed 10 people at his high school. In 2007, Sueng-Hui Cho, a senior at Virginia Tech, murdered 33 people in two separate shootings at his university. In 2012, Adam Lanza left his home after killing his mother to murder 28 students and faculty at Sandy Hook Elementary School (Rapp). Over the past few decades, gun violence in America has become more and more at the forefront of American politics and discourse because of the frequency and moral closeness of the problem. Many politicians have argued in past years that the problem of gun violence can be solved by removing all firearms from the hands of private citizens. In contrast, this paper argues that such violence can only be prevented with the proper treatment of mental illness in schools. This thesis will be demonstrated primarily by evaluating the causes of gun violence.