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Out front next, the breaking news as the nation warns the 21 lives lost in texas growing questions over the

police response to the shooter and the messages he sent just before the massacre plus a republican

who represented the people of evaldi now he's calling out his own party for doing nothing about gun violence

saying quote the shit has got to stop will heard is my guest. Plus more calls for arming teachers and security guards at schools.

Is there any evidence, though, that that works?

We investigate.

Let's go out front.

And good evening.

I'm Aaron Burnad.

Outfront tonight at least 40 minutes of terror.

Officials now say the gunman who murdered 19 children and two teachers was inside the

Yuvali Texas Elementary School for more than 40 minutes, if not longer.

During that time, he murdered 21 innocent people.

The families of the children you see on your screen torn apart in a matter of seconds.

Their parents, brothers and sisters, friends will never see them again. And yesterday's attack is now brought the number of shootings of four or more

people in the United States to 213 incidents this year alone. Two hundred thirteen incidents where

four or more people have been shot.

...