Deadliest mass shootings in recent US history
The massacre at Robb Elementary School in Uvalde, Texas, marked the seventh deadliest mass shooting in recent U.S. history. SUBSCRIBE to ABC News: https://bit.ly/2vZb6yP WATCH MORE on http://abcnews.go.com/ LIKE ABC News on FACEBOOK: https://www.facebook.com/abcnews FOLLOW ABC News on TWITTER: https://twitter.com/abc #ABCNews