The video you’re referring to seems to discuss the dark history of violent individuals using YouTube. It mentions notable cases like Elliot Rodger, who was responsible for a tragic shooting spree, and others such as Trey Sessler and Ethan Crumley, who have been involved in serious crimes and found their way onto the platform. The video highlights the issue of disturbing individuals using YouTube, a site with around 2.3 billion users, making it a platform where such individuals can gain visibility.