Dave Adams remembers how excited Alex Quiros was when he gained acceptance into the Air Force Academy. The Cheyenne Mountain High School English teacher and boys' tennis coach said Quiros was a smart student and a hardworking tennis player who was up for any challenge. "He wasn't afraid of anything. He was such an impressive young man." But Adams was in shock Friday when he learned Quiros was the Air Force Academy cadet who died at the school Thursday. The 21-year-old astronautical engineering major was months from finishing his senior year when he was found injured in his Sijan Hall dormitory room. Quiros was pronounced dead at 3:43 p.m. Thursday, after emergency medical personnel...