Tonight we have new details in the search for Savannah Guthrie's mother, including a new timeline of her disappearance and a new reward for her safe return.

Investigators say they believe Nancy Guthrie is, quote, still out there as we learn more about the purported ransom note, including a deadline of tonight.

Now investigators say something possibly a person

who was detected on the home security camera that night.

And Savannah and her siblings' emotional plea

to their mother's potential capture

in the hopes of getting her back.

Our Liz Croix presses the sheriff on the investigation.

Also breaking a driver plowing into a Los Angeles grocery store,

killing at least three people, crews racing to the rescue, people trapped under the car,

what we're learning. The major market meltdown over AI fears. In my exclusive sitdown,

I asked President Trump about growing concerns that tech could eliminate millions of American

jobs. Plus what he revealed about the new weapon the U.S. used in Venezuela, he calls the

discombobulator. We're just hours away from the 2026 Winter Olympics opening ceremony.

The athletes already kicking off the competition. Plus this new video of Lindsay Vaughn,

will she overcome her injury to ski for gold? Shocking elevator explosion, a man holding balloons,

bursting into flames? What went wrong? New video of a car barreling into Detroit's airport,

crashing through the terminal, narrowly missing passengers,

the chaos inside.

This is NBC Nightly News with Tom Yamas.

And good evening.

It has been another gut-wrenching day here at NBC News as investigators search for Savannah

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