Celebrities and Politicians React to Texas Elementary-School Shooting

"Broken-hearted… I've been so emotional and crying a lot since I heard the news about these beautiful children and teachers," Jennifer Lopez wrote on Instagram under a repost of a video of Steve Kerr speaking out about the event.

"Along with so many others, I'm demanding for law makers to stop the violence that is happening across this country!!! Our country!! I am so sad and scared for our kids and loved ones. I'm scared for all of us who send our children to school every day or going to the grocery store!! My heart goes out to all of those who have been impacted by this unimaginable act!! I can't think of anything more cruel or diabolical than to target small children. God help us!!! We need some serious change!!! And we need it NOW!!!"