A 17-year-old gunman killed a sixth grade student and wounded five other people at Perry High School near Des Moines, Iowa, authorities said. Perry High School student and survivor Rachael Kares joins Anderson Cooper to share her experience.A 17-year-old gunman killed a sixth grade student and wounded five other people at Perry High School near Des Moines, Iowa, authorities said. Perry High School student and survivor Rachael Kares joins Anderson Cooper to share her experience.
