Welcome to meet the press now. I'm Kristen Welker in Washington. We are following multiple

breaking news stories at this hour. Plus, we have much more for my exclusive one-on-one

interview with President-elect Donald Trump.

We spoke for nearly 90 minutes about his plans for the next four years, including mass deportations,

and the possibility of going after his political rivals.

Plus, we'll bring you what he told me about two of his most controversial cabinet picks,

Tulsi Gabbard and RFK Jr. But we begin with breaking

news. Authorities say they have a strong person of interest in custody and connection with the

killing of United Healthcare CEO Brian Thompson. Police now identifying that person as Luigi

Mangione, who was arrested on gun charges earlier today at a McDonald's in Altoona, Pennsylvania,

where an employee said he was acting suspiciously. Police say they found evidence suggesting

he is the man they were looking for after last week's deadly shooting in Midtown Manhattan.

The suspect who was acting suspiciously and was carrying multiple fraudulent IDs as well as a U.S. passport.

Upon further investigation, officers recovered a firearm on his person, as well as a suppressor,

both consistent with the weapon used in the murder.

They also recovered clothing, including a mask

consistent with those worn by our wanted individual. Police say they also found a fake New Jersey ID

matching the ID the suspect used to check into a New York City hostel before the shooting.

NBC News has also obtained a photo of this gun found

on Mangione, a law enforcement official telling us it appears to be similar to the weapon used

in last week's Manhattan shooting. Now, to be clear, Mangione has not been charged in connection

with Thompson's death. But today's developments come after an exhaustive five-day manhunt that included surveillance

...