As many as 13 people were dead and more than 20 others were injured after a gunman opened fire Thursday morning on the campus of Umpqua Community College in southwest Oregon, authorities told NBC News. The gunman was killed in a firefight with Douglas County sheriff's deputies, Sheriff John Hanlin said. No officers were injured, said Hanlin, who said: "It's been a terrible day." Umpqua is a two-year school with about 3,300 full-time students and 16,000 part-time students. It started offering classes in 1961.