Yep there's a whole underground movement of people that are basically pro-school shooting online. They consider themselves part of the lineage that started with the Columbine shooters. It's sick shit, but nobody has done a damned thing to tamper down on it and like other fringe groups they've found each other online and are networking.
Media coverage about school shooters became somewhat better in that they at least don't get into every seedy detail about the lives of the killers, but this other type of killer has been seeing a different type of coverage entirely. It stands to reason that they'll start to see this as the better path toward infamy.