A second-grader was the first to call 911 as another student opened fire at her Wisconsin school, killing 2 and injuring 6

A group of Wisconsin police officers had planned to spend Monday training to care for victims of mass trauma events when late in the morning a student in second grade called 911 to report an active shooting at a nearby school in east Madison.

​ A group of Wisconsin police officers had planned to spend Monday training to care for victims of mass trauma events when late in the morning a student in second grade called 911 to report an active shooting at a nearby school in east Madison. Read More Breaking News, Latest News and Videos | CNN