New info on school shooter

While we still have no apparent motive for the mass school shooting in Nashville, police have shared new details about the shooter who murdered six people.  Plus: The special counsel investigating Donald Trump wins a courtroom fight to force Mike Pence to go under oath.  And: Chris Christie says never again to Donald Trump and tells New Hampshire voters that he's the one who can go toe to toe with the former president.  To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices