Christopher Harper-Mercer, the 26-year-old accused of killing nine people and wounding nine more at Umpqua Community College October 1, was discharged from the US Army in 2008 following a suicide attempt, law enforcement officials told The Wall Street Journal.
http://www.businessinsider.com/alleged-shooter-discharged-from-army-2015-10
http://www.businessinsider.com/alleged-shooter-discharged-from-army-2015-10