'Heartbroken & Horrified': Celebrities React To The Deadliest Shooting In U.S History

Early Sunday morning, the deadliest shooting in the U.S took place in Orlando. Omar Marteen opened fired in Pulse, a gay nightclub, and killed 50 people, injuring 53. Click through to see the most heartbreaking celebrity reactions to the massacre.

Kim Kardashian West.

Kirstie Alley.

Matt Bomer.

Ariel Winter.

Ariana Grande.

Cher.

Adam Lambert.

Kelly Rowland.

Boy George.

Gabrielle Union.

Johnny Weir.

Hillary Scott.

Khloe Kardashian.

Kourtney Kardashian.

Kris Jenner.

Nick Jonas.

Reese Witherspoon. 

Julianne Hough.

John Legend.

Jeremy Lin.

Melissa Joan Hart.

Sean Hayes.

Debra Messing.

Ellen DeGeneres.

Donald Trump.

Hilary Clinton. 

Marco Rubio.

Farrah Abraham.

Caitlyn Jenner.