You are right. They are dead so the media attention is lost on them. Some suggest it inspires copycats.
It very well may. Can't even dispute it, really; all these recent turds have referenced Harris/Klebold or V Tech, etc. They see these fucks as heroes. Modern technology, though, can't unring that bell.
Find a YouTube documentary about one of these school shootings, just to read the comments below. You'll be sickened to learn who's out there walking among us. And it ain't just a few.