Police officers stand on the sidewalk after a shooting at Reynolds High School in Troutdale, Oregon June 10, 2014. A gunman walked into the Oregon high school with a rifle and shot a student to death ... more 
Police officers stand on the sidewalk after a shooting at Reynolds High School in Troutdale, Oregon June 10, 2014. A gunman walked into the Oregon high school with a rifle and shot a student to death on Tuesday before he was later found dead, in the third outbreak of gun violence to shake a U.S. high school or college campus in less than three weeks. REUTERS/Steve Dipaola (UNITED STATES - Tags: CRIME LAW EDUCATION) less 
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Reuters | Photo By STEVE DIPAOLA / REUTERS
Tue, Jun 10, 2014 6:38 PM EDT