Up to 20 students fled to safety. Frightened students, their hands in the air, were evacuated and frisked by police. Suicide mission' Steve Davis, a spokesman for Jefferson County Sheriff's department, announced police were looking for two suspects, but said it was not clear where they were in the building. Their wounds were apparently self-inflicted. At around the same time Sheriff John Stone said the death toll appeared to be up to 25.
Authorities find an explosive device in a car in the school parking lot.
Wednesday morning - Police revise death toll to 15, based on a count of bodies.