Stephanie Gosk

And in this case, you've got something of a surprise that his defense attorney, newly acquired, stood up in court yesterday and said that they were going to fight this extradition, which could slow it down for weeks. But law experts say it is something of an inevitability that he's going to end up in New York City.

And in this case, you've got something of a surprise that his defense attorney, newly acquired, stood up in court yesterday and said that they were going to fight this extradition, which could slow it down for weeks. But law experts say it is something of an inevitability that he's going to end up in New York City.

It's really fascinating because we had been inside the courthouse trying to get a good seat early. And we started getting some messages about how he entered the courthouse. Now, he was escorted by armed sheriff's deputies in his orange jumpsuit. Our cameras were there and caught him going in. And he was really agitated. He was yelling out.

It's really fascinating because we had been inside the courthouse trying to get a good seat early. And we started getting some messages about how he entered the courthouse. Now, he was escorted by armed sheriff's deputies in his orange jumpsuit. Our cameras were there and caught him going in. And he was really agitated. He was yelling out.

He said something about, you know, the American people are being insulted, their intelligence is being insulted. By the time he got into the courtroom and we were sitting there, he was calm. He was relaxed, even smiled a couple of times. There was also really an interesting moment during this hearing, which was pretty brief. But at one point, he tried to speak.

He said something about, you know, the American people are being insulted, their intelligence is being insulted. By the time he got into the courtroom and we were sitting there, he was calm. He was relaxed, even smiled a couple of times. There was also really an interesting moment during this hearing, which was pretty brief. But at one point, he tried to speak.

Mangione tried to say something rude. When he was not being addressed by the judge and his defense attorney whipped around and snapped, don't say a word. A little bit of tension between the defense attorney and his client.

Mangione tried to say something rude. When he was not being addressed by the judge and his defense attorney whipped around and snapped, don't say a word. A little bit of tension between the defense attorney and his client.

They're still sorting through evidence. Hours and hours and hours, hundreds of hours of video. They are going through the forensics. We've just heard confirmation that they retrieved a print, some prints, they say, that are the same at the crime scene, that are the same as Luigi Mangione's.

They're still sorting through evidence. Hours and hours and hours, hundreds of hours of video. They are going through the forensics. We've just heard confirmation that they retrieved a print, some prints, they say, that are the same at the crime scene, that are the same as Luigi Mangione's.

You know, there are some outstanding questions that I have, and primarily they have to do with the planning of this. Brian Thompson was at a hotel down the street, which is not the hotel where the conference was being held. I'm very curious as to how he might have known that information.

You know, there are some outstanding questions that I have, and primarily they have to do with the planning of this. Brian Thompson was at a hotel down the street, which is not the hotel where the conference was being held. I'm very curious as to how he might have known that information.

You know, I got the call and the person on the other end of the phone said, get to Altoona. We immediately hit the road. It was just get in the car and drive.

You know, I got the call and the person on the other end of the phone said, get to Altoona. We immediately hit the road. It was just get in the car and drive.

You know, I got the call and the person on the other end of the phone said, get to Altoona. We immediately hit the road. It was just get in the car and drive.

Basically five hours to this town, to this remarkable turning point in this story where Luigi Mangione, whose name we had not heard, who had not been identified up until that point, was seen in a McDonald's. What have you learned about who this man is? Interesting background. He comes from a well-to-do family in Baltimore.

Basically five hours to this town, to this remarkable turning point in this story where Luigi Mangione, whose name we had not heard, who had not been identified up until that point, was seen in a McDonald's. What have you learned about who this man is? Interesting background. He comes from a well-to-do family in Baltimore.

Basically five hours to this town, to this remarkable turning point in this story where Luigi Mangione, whose name we had not heard, who had not been identified up until that point, was seen in a McDonald's. What have you learned about who this man is? Interesting background. He comes from a well-to-do family in Baltimore.

He then went off to the Ivy League, to the University of Pennsylvania, where he got a bachelor's and a master's in computer science. And then NBC News has reached out to him.

He then went off to the Ivy League, to the University of Pennsylvania, where he got a bachelor's and a master's in computer science. And then NBC News has reached out to him.