3 students and 3 adults killed in Nashville school shooting

Three students who police say were only nine-years-old and three adults were killed after a shooting at a private Christian elementary school in Nashville, Tennessee. Authorities say the 28-year-old shooter, who is believed to have attended the school, entered the building through a side door and was armed with at least two assault-style rifles and a handgun. Former FBI Deputy Director Andrew McCabe tells Anderson Cooper what will come next in the investigation. Plus, at least 26 people died as violent storms and tornadoes swept through the South over the weekend. CNN Correspondent Isabel Rosales joins AC360 from Mississippi where homes are completely destroyed and some survivors are still fighting for their lives. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices