• Luigi Mangione, the suspect in the UnitedHealthcare CEO's killing, shouted to the press on Tuesday.
  • He referred to "an insult to the American people" as police led him into a Pennsylvania courthouse.
  • Mangione was being led into an extradition hearing.

Luigi Mangione, the suspect in the killing of UnitedHealthcare CEO Brian Thompson, shouted out to the press as Pennsylvania police escorted him into a local courthouse for an extradition hearing on Tuesday.

The 26-year-old Ivy League graduate called out something partially unintelligible, calling it "completely out of touch" and "an insult to the American people." He also yelled that something was a "lived experience" as a group of officers led him into the Blair County Court House.

It's not clear what else Mangione yelled toward reporters who had gathered outside the courthouse.

Manigone is expected to be extradited to New York City where he'll face a murder charge in the December 4 Midtown Manhattan killing of Thompson that set off a massive five-day manhunt.

Police arrested Mangione on Monday in Altoona, Pennsylvania, on local charges after they found him in a McDonald's with a 3-D-printed gun inside his backpack, according to police and a criminal complaint.

A New York arrest warrant issued for Mangione shows the suspect faces a second-degree murder charge, which carries a maximum sentence of life in prison.

He also faces four other charges related to the killing of the insurance CEO: two counts of criminal possession of a weapon in the second-degree, one count of second-degree criminal possession of a forged instrument, and one count of criminal possession of a weapon in the third-degree.

During Mangione's arrest in an Altoona McDonald's officers found a three-page handwritten so-called manifesto "that speaks to both his motivation and mindset," New York Police Department Commissioner Jessica Tisch said at a Monday press conference.

During an interview Tuesday morning on NBC's "Today" show, Tisch said the document revealed "anti-corporatist sentiment" and "a lot of issues with the health care industry."

"But as to like particular, specific motive that'll come out as this investigation continues to unfold over the next weeks and month," the NYPD commissioner said.

This story is developing and will be updated.

Read the original article on Business Insider