Note the links on the video to evidence about the link between violent images/video games and the normalisation of violence and ultimately violence depending on a range of circumstances.
My peace education work REAL HOPE peace, nonviolence and anti bullying program is a way to help kids become aware. If they were to learn values then play I am sure it would give the children the power to be aware and choose.
The mother of the shooter at Columbine High School speaks about her perspective on violence and suicide.