Tonight, the new details in the murder of the United Healthcare CEO and how the suspect fled from New York City.

The new interview with the NYPD revealing for the first time that suspect Luigi Mangione allegedly used the city's busy subway system to help make his escape,

where he went from there, and the ATMs they they say he was using along the way for cash.

Our new reporting just ahead.

Also, tonight, the Arctic cold blast sweeping across the eastern half of the U.S.

Lake effect snow snarling highways, the truck slamming into a fire engine in Michigan.

The growing alarm over the mystery drones over New Jersey, several U.S.

senators citing urgent concerns, now demanding answers from the FBI, FAA, and Homeland Security.

The new accusations against Sean Diddy Combs, three men accusing the music mogul of drugging

and sexually assaulting them. The missing

American found alive in Syria what he told our Richard Engel, finally free after months inside

one of the regime's prisons. President-elect Donald Trump ringing the bell on the New York

Stock Exchange as Tyne names him Person of the year. And what he's now saying about grocery

prices after campaigning on a promise to lower them. And Hollywood legend Dick Van Dyke sharing

with NBC News how he escaped the Malibu Wildfire on the eve of his 99th Earth debt.

This is NBC Nightly News with Lester Holt.

Good evening and welcome.

As New York authorities await the return of Luigi Mangione from Pennsylvania to face

charges in the CEO murder, they are not standing still.

The NYPD's top-ranking detective revealing to NBC news

new details about the route Mangione took to escape. The NYPD Dragnet formed after the murder,

despite the digital trail they were able to build through surveillance photos. The NYPD

...