Tonight, new details in that deadly sniper attack at an ice facility in Dallas.

The gunman opening fire from a nearby rooftop. One detainee killed, two others in critical

condition. The gunman, leaving behind shell casings with anti-ice messages, bullet hole seen

in an office window and this framed American flag.

What the 29-year-old suspect's brother revealed to us as the acting director of ICE

tells me his agents are under assault.

Also breaking tonight, the Justice Department, weighing whether to indict former FBI director

James Comey over allegations of lying to Congress.

Plus, we're tracking the most powerful typhoon on Earth so far this year, called the King of

Storms, the devastating images coming in, floodwaters, shattering these hotel doors, families

being rescued. And closer to home, Tropical Storm Umberto and another system close by in the Atlantic

could impact the East Coast next week.

Will they interact or even combine are Bill Karen standing by?

The scene of an unspeakable tragedy this summer can't miss it, now announcing plans

to reopen the outrage

reaction from victims' families.

The massive sinkhole opening up, swallowing part of a neighborhood.

And you'll meet the self-taught 10-year-old chess prodigy, a global sensation, and what

happened when R. Raf Sanchez tried to take her on. Nightly News starts right now.

This is NBC Nightly News with Tom Yamas. And good evening. We come on the air with yet another

deadly sniper attack, this time directed towards ICE officers in Texas.

DHS calling this an attack on ICE law enforcement,

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