Bullying can lead to school shootings / Bullying is not a valid reason for school shootings / Violence in video games and other media can cause school shootings / Violence in the media does not lead to school shootings / Access to guns can lead to school shootings / Guns have been wrongfully blamed for school shootings / Ignoring the problems of white teenagers causes school shootings / Absence of public morality causes school shootings / Immaturity of the adolescent brain can lead to school shootings / Schools can take steps to reduce school shootings / Schools are taking unnecessary steps to reduce school shootings / Gun control is needed to end school shootings / Gun control is not the answer to school shootings / Access to mental health treatment can prevent school shootings