BreakingNews: Mangione’s lawyer, Thomas Dickey, says there is no evidence linking his client to the shooting of UnitedHealthcare CEO Brian Thompson, per ABC,…..see more

Luigi Mangione, the man accused of gunning down UnitedHealthcare CEO Brian Thompson, yelled to the press about “an insult to the intelligence of the American people” as he was physically dragged into a Pennsylvania courthouse on Tuesday.

Mangione, who was shackled at the waist and ankles, was brought to court for an extradition hearing in connection with Thompson’s Dec. 4 slaying outsiders a Midtown Manhattan hotel.

Mangione, who was arrested in Pennsylvania for gun possession on Monday and faces charges in New York including second-degree murder, is challenging his extradition.

“He has constitutional rights and that’s what he’s doing,” his attorney, Thomas Dickey, told reporters.

At one point during Tuesday’s court appearance, Mangione tried to interject while Dickey was attempting to convince the judge to release him on bail. He was discussing the $8,000 in U.S. currency and $2,000 in foreign currency Mangione was allegedly found with. Dickey instructed his client, “Don’t say a word.”

The judge ordered Mangione, 26, held without bail.

The Manhattan District Attorney’s Office said it will seek a governor’s warrant to try to force Mangione’s extradition. New York Gov. Kathy Hochul said in a statement that she’ll sign a request for the governor’s warrant “to ensure this individual is tried and held accountable.”

Dickey told reporters Mangione will plead not guilty to the Pennsylvania charges. He said he anticipates that Mangione will also plead not guilty to the second-degree murder charge in New York.

The attorney said he has limited information about the facts of the New York murder case but he conceded Mangione is “accused of some serious matters.” He added that Mangione is “taking it as well as he can.”

Dickey declined to answer when asked if Mangione has been in touch with his family.

Mangione’s mother filed in November a missing person report in San Francisco, seeking info on Mangione, according to two law enforcement sources. Repeated requests for information about the report went unanswered by the San Francisco Police Department. Both the chief and the spokesman referred questions to the NYPD.

Mangione’s writings, obtained by ABC News, addressed to the “Feds,” said, “I do apologize for any strife of traumas but it had to be done. Frankly, these parasites simply had it coming.”

He claimed that the U.S. has the most expensive health care system in the world, but ranks about No. 42 in life expectancy. He said UnitedHealthcare “has grown and grown, but as our life expectancy? No the reality is, these [indecipherable] have simply gotten too powerful, and they continue to abuse our country for immense profit.”