Luigi Mangione faces federal charges in New York after waiving extradition

Luigi Mangione, the suspect accused of fatally shooting healthcare insurance CEO Brian Thompson, was extradited to New York on Thursday to face a hearing over new federal charges against him.

Wearing a blue sweater and khaki pants, Mr Mangione arrived in a federal courtroom in New York on Thursday afternoon with his feet shackled together and his hands freed.

During a 15-minute hearing, a judge read out loud the four federal charges against him, including murder through a firearm, which opens up the possibility of the death penalty.

The 26-year-old will remain behind bars as his lawyers said during the hearing that they would not yet present an application for bail.

The proceedings came after a hearing in Pennsylvania to discuss Mr Mangione's extradition back to New York where the shooting occurred.

Five days after Mr Thompson, the UnitedHealthcare CEO, was shot and killed, Mr Mangione was arrested at a McDonald's in Altoona, Pennsylvania, with a fake ID and so-called "ghost gun", police have said.

During the hearing on Thursday, Mr Mangione sat between his two lawyers - Karen Friedman Agnifilo, and her husband, Mark Agnifilo, who also is representing rapper Sean "Diddy Combs" in his sex trafficking case.

Mr Mangione nodded along during the hearing as New York Magistrate Judge Katherine Parker read him his rights, including the right to remain silent.

She also read the charges against him: two counts of stalking, a firearms offense, and murder through use of a firearm.

New York prosecutors began to share evidence in their case against Mr Mangione with a grand jury last week.

The evidence against Mr Mangione includes a positive match of his fingerprints with those discovered at the crime scene, New York Police Commissioner Jessica Tisch said.

According to New York District Attorney Alvin Bragg, the suspect arrived in New York City on 24 November, staying in a Manhattan hostel while using a fake ID before carrying out the attack against Mr Thompson 10 days later.

In addition to the ghost gun - a gun assembled from untraceable parts - and fake ID, a passport and a handwritten document indicating "motivation and mindset" also were found on Mr Mangione when he was arrested, police said.