Luigi Mangione pleaded not guilty to New York State charges in the killing of UnitedHealthcare CEO Brian Thompson on Monday. Mangione's defense complained about police parading him in “perp walks” that she says are “perfectly choreographed" and "utterly political.

An indictment out of New York listed four federal charges in connection with the killing of Brian Thompson this month.

United Healthcare CEO murder suspect Luigi Mangione is set to appear in court Thursday to argue against extradition to New York and discuss the charges he is also facing in Pennsylvania.

Luigi Mangione, the accused killer of UnitedHealthcare CEO Brian Thompson, is expected to waive extradition when he appears in court in Pennsylvania on Thursday.

Luigi Mangione agreed to be extradited at a court appearance in Pennsylvania where he was arrested last week after five days on the run.

A Manhattan grand jury has indicted Luigi Mangione, suspect in assassination of UnitedHealthcare CEO Brian Thompson outside a New York City Hilton hotel.

As New York City prosecutors work to bring murder charges against Luigi Mangione in the brazen killing of UnitedHealthcare CEO Brian Thompson, supporters of the suspect are donating tens of thousands of dollars for a defense fund established for him,