What are some things school can do to prevent or stop cyberbullying?

There isn't really a way to stop people cyber-bullying, because children have internet access at the click of their fingers. Schools should maybe use examples of people who have killed themselves. Amanda Todd is one of the most famous examples for teenagers in 2012. Instead of showing them acted videos with happy endings where the cyberbully gets arrested or caught, maybe they should show them videos where the victim commits suicide and that would scare them into not cyber-bullying people. Haha, sorry, that wasn't a very good answer.