A former student kills three 9-year-olds and three adults at a Nashville elementary school, in what police are calling a “calculated and planned” attack involving at least one legally obtained AR-style weapon. Plus, tensions ease in Israel after Prime Minister Benjamin Netanyahu backs off from his push to overhaul the country's judicial system following mass protests. And, NASA says five planets will align starting tonight, but you won’t need binoculars to see them - just look up.Also this morning: a crucial witness in the Trump hush money case testifies before the grand jury for a second time. Plus, Evanston, Illinois adds a cash option to its landmark reparations program, there’s new unrest in France over Macron's increase to the retirement age with protesters vowing mass demonstrations to shut the country down, and, Prince Harry and Elton John take the Daily Mail publisher to court in privacy lawsuits.To learn more about how CNN protects listener privacy, visit cnn.com/privacy