Police tell CNN the Nashville school shooter was being treated for an “emotional disorder”. Audrey Hale bought seven guns legally in Nashville, using three of them in the massacre. The panel discusses the link between gun violence and metal health, and the flaws in the current system around gun ownership. Plus, another legal defeat for Trump after a federal judge rules Mike Pence must testify to a grand jury about his conversations with the then President leading up to January 6.Also tonight: how new AI tools could blur the line between fact and fiction after a Professor says ChatGTP is echoing myths about slavery, why Americans are so uncomfortable with discomfort, a Wall Street Journal poll shows the values that are important to Americans now compared to 25 years ago, and, snooze science - does napping make up for a bad night’s sleep?Hosted by Alisyn Camerota. To learn more about how CNN protects listener privacy, visit cnn.com/privacy