I think if the Columbine shootings happened today, or many other mass murders by disgruntled people trying to get noticed, they'd claim they were part of that network. The "network" would happily accept their claimed loyalty, as it furthered their goal of promoting hatred and provoking war. And the "other side" who also wanted war, would happily buy their lies and post shit about it in forums around the world. Nothing is as much fun as hate, right? Tools.