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.

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.