For the most part, you kno who you don't see shooting up schools? Athletes, choir members, the band, chess club, jROTC, the shooting team, the theater dept, or pretty much anyone with extracurricular activities. Why didn't kids shoot up schools during the dust bowl? They had shit to do. Maybe not glee club, but living was a full time job.
As an analogy, you are hard pressed to find people with allergies in 3rd world countries. And, science has shown that clean homes produce allergies. Effectively, the immune system doesn't have anything to do, so it invents enemies.
These kids are bored. They don't have anything to do, so they invent their problems. Then they eat themselves up with those inventions. Life is hard? Bull shit, life is easy. A roof, 3 squares a day, warm bed, a series of free schools where you can learn about almost anything in the universe.
I haven't done any studies, but I'd like to know the prevalence of school shootings in 3rd world countries...
social media should allow us to identify/catch the really dumb ones and prevent a few. So, thanks for that...