I think it's both. Kids have been bullied since the dawn of time. It's unfortunate. I was when I was in high school by a kid that looked like he never stepped onto the evolutionary ladder. There were no (or VERY few shootings in schools back then). It's now like one a month or so.

I drove by the school that they moved Sandy Hook Elementary to while they build a new school a week ago. It was about 7:30-8pm. There was a news truck outside with its satellite rig extended 30' up. It didn't just swing in for a quick stay. It's been a year and a half and they still have to deal with that crap. The media sensationalizes all these tragic events and the sickos feed off it.