LIVE: NBC News NOW - Dec. 24

Shooting in Maryland involving ICE agents leaves two injured

Pope Leo celebrates Christmas Mass at the Vatican

Christmas celebrations return to Bethlehem

Brothers with rare genetic disease receive gene therapy

Wealthiest Americans increasingly driving U.S. economy

New documents in the Jeffrey Epstein Case

Sean 'Diddy' Combs files appeal to overturn conviction

DOJ says it has uncovered over one million more Epstein-related files

Investigators inspect site of deadly Moscow explosion

Security video captures the moment a 6.1 magnitude earthquake hits Taiwan

Bodycam captures man dressed as Santa pulled over

Maury Povich tells how 'You are not the father' began

'Slender Man' stabber sent to institution after escape

'Never seen such heroism': Police chief describes scene after nursing home explosions