Happening now breaking news and almost unspeakable tragedy in Texas as another

gunman turns another place for young people to learn into another uniquely American nightmare.

He shot and killed horrifically and comprehensively 14 students and killed a teacher.

There are families who are in mourning right now and the state of Texas is in mourning with them.

15 lives taken so many more lives, so many families shattered forever.

We'll have extensive live reporting and perspective on perhaps the

satisfaction of modern American life.

We want to welcome our viewers here in the United States and around the world.

I'm Wolf Blitzer, you're in the Situation Room. This is

this is CNN breaking news. We begin sadly with yet another mass shooting here in the United States

this time at Rob Elementary School,

elementary school in Yuvalle, Texas.

CNN's Ed Levendera is in Dallas.

He's got the latest information for us.

What are authorities, Ed saying about how

this happened? What's the latest information we have?

Wolf, a horrific day in Yuvalday, Texas and across this country is once again we are reeling from this horrific

news as the governor of Texas announced just a short while ago.

Fourteen of the 15 victims shot at Rob Elementary School in Yuvalday, Texas today were children.

The top security officer for the school district there in Yuvalday says that at the school

it was second, third, and fourth graders that were in that building. So that gives

you a sense of the age ranges that we will be looking at as we learn the identities of these

...