This is such sad news to hear. I've stayed with family friends in Roseburg several times in my life (just last year even). The place is just one of those rural small towns where I wouldn't imagine this kind of thing happening. Just a month ago I recognized the town was in the news as the hometown of one of the people who subdued the gunman on the train in France. Several weeks ago there was a shooting incident (though gang related) at the community college I went to here in California. When I heard about this being at a community college, and also in a town I've been to, it just made me tear up.
Somewhat unrelated, but something that actually made me feel ashamed about some of the recent issues and how they reflect on America, was when the Secretary General of the UN, Ban Ki Moon, actually directed a warning towards the US about the Ferguson incident. Like, it really upset my notions about the US to hear the UN direct a warning towards my country. In several threads following mass shootings, there'd been posters here from other countries who also said things that caused me to feel shame and unease. They posted that they were concerned about the Americans who were going to die in the future because of my country's stubbornness. And now I can see that these people who died in Roseburg, they were some of those Americans that the posters from other countries were concerned about.