Report: Arapahoe High School dismissed warning signs before 2013 Colorado shooting
Tuesday, January 19, 2016 - 06:30
in Mathematics & Economics
Amy R. ConnollyLITTLETON, Colo., Jan. 19 (UPI) -- Arapahoe High School officials ignored signs an 18-year old student was a threat before he killed a classmate and himself in 2013, a new report said.