Family spokesman: depression may have led to Tennessee killings. (AP)
FBI checking gunman's phone, computer, trips for connections to ISIS. (USA Today)
Major interstate highway closes after bridge collapse. (USA Today)
Scott Walker to sign Wisconsin's 20-week abortion ban into law today. (Milwaukee Journal-Sentinel)
Bernie Sanders draws his biggest crowd yet. (Washington Post)
Protesters shut down forum for Democratic presidential candidates. (New York Magazine)
John Kasich's anger management. (Politico)
U.S., Cuba restored full diplomatic ties just after midnight. (AP)
What are you reading this morning? Let us know in the comments, please.