LIVE: NBC News NOW - April 20
8 children have been killed in a Louisiana mass shooting
Five people injured in shooting near University of Iowa
Dust devil tears through North Carolina baseball game
Trump says U.S. seized Iranian ship amid rising tensions
8 children killed, 2 women wounded in Louisiana shooting
Oklahoma principal crowned prom king for his heroism
1 dead after small plane crashes into Florida yard
U.S. military seizes Iranian-flagged cargo ship
California woman arrested over alleged arms dealing for Iran
NBC Nightly News Full Episode - April 19
New look at Jeffrey Epstein’s Zorro Ranch
Deadly mass shooting in Louisiana
Northeast blasted with sudden snow and freezing temperatures
Trump’s approval rating hits record low in NBC News Poll