Live from NPR News in Washington, I'm Janine Herbst.

Investigators say they think the gunmen, who opened fire at the White House correspondent's dinner last night at the Hilton, was targeting Trump administration officials.

Acting Attorney General Todd Blanche says it's not clear if he acted alone.

We are actively combing through all the evidence that we've collected and going to continue

to do that today in the coming days and weeks. And if he did not act alone or if folks knew what he

was doing or helped him along the way, we will find that out. Speaking there to CBS's Face

the Nation, authorities identified him as 31-year-old Cole Allen from the Los Angeles area.

He's scheduled to be arraigned in federal court as early as tomorrow on weapons charges and assault on a federal officer.

President Trump says he wanted to continue the dinner at the Hilton last night after the shooting, but he says

it was the right thing to do to leave the hotel. And Pierce Franco-Oordogne's reports, now Trump's

pointing to the shooting as reason to finish the controversial White House ballroom under construction.

President Trump says a shooting would never have happened if it were held in the new ballroom he's having built at the White House.

He called the Washington Hilton not a particularly secure site, as he explained on Fox News.

Well, it's always tough when you have a thousand rooms.

It's a large hotel right on top.

And so people come down in elevators and they're right over the top of where you're

speaking, not very far away. And it's pretty tough. And, you know, as you know, we're building a big,

beautiful, very, very secure ballroom in every way with massive bulletproof glass. It's almost

four inches thick. The White House ballroom is facing legal hurdles.

Even if it is built, it's not clear if the dinner could be held there.

The annual event is private.

Franco Ordonez.

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