I saw this article earlier on Twitter. I think it would have been a bigger story if last night hadn't been election night. I find it disturbing that it affected the polling places, but it sounds as if this may have started as a domestic issue, with drugs involved. The shooter is being called a gun nut, but he's Hispanic and ex-military, so that could be why the story wasn't as widely distributed.
I posted it yesterday in the election thread. I know I have my cloak of invisibility on but I thought you were seeing me. I think it's when you were eating dinner. Just a screenshot of the tweet.