As far as I'm concerned, a kidnapping case from two states away isn't news.
News is something which could affect me or which I could affect; if it's an Amber Alert from my hometown or close by, it's news in a vague sense that, in theory, I might have some effect on it. (Statistically I'd have a better shot at winning a small prize in a lottery, but still...)
So: The Columbine school shooting? Not news. I've never lived near Columbine. The laws and changing social attitudes as a result of that? News.
Facebook is cited as being a primary source of news, yet items that I see pop up in the 'news' block on FB are generally of the fashion, entertainment and asinine activities of alleged celebrities variety... not news by my definition.