I doubt that. I moved around a lot as a kid, so I went to at least eight different public schools from Alabama to Washington. One school was structurally condemned while I attended it. Some places had bullying, and sometimes a couple of people fought, but never with weapons, and there was never an injury severe enough to require medical attention.
I also know several high school teachers and the worst things they've complained about are disruptive/stupid students, not violence. And my friends who are parents would never send their kids to a school that had incidents like the ones I linked to. I think this sort of violence is limited to a small fraction of schools/districts.