Colorado School Shooting: Police cannot locate a second suspect

(CNN) — “We have not been able to locate a second suspect, but that’s part of our ongoing investigation,” the sheriff said. The shooting began after the student entered the school and identified a teacher whom he was interested in confronting, Robinson said. That teacher was informed of the situation and exited, he added. One student was taken to a hospital in serious condition with a gunshot wound; another was injured, though the cause was not clear, he said.