Luigi Mangione, who is accused of killing UnitedHealthcare CEO Brian Thompson, is scheduled to appear in court Tuesday for some key procedural decisions.

Luigi Mangione appeared at State Supreme Court for a hearing in February. Mangione is schedule to appear in New York state court Tuesday. File Pool Photo by Steven Hirsch/UPI UPI

Sept. 16 (UPI) -- Luigi Mangione, who is accused of killing UnitedHealthcare CEO Brian Thompson, is scheduled to appear in court Tuesday for the judge to announce some important decisions in his case.

Mangione, 27, faces dozens of state charges including murder in the first degree in furtherance of terrorism, for allegedly shooting Thompson, 50, outside a midtown Manhattan hotel on Dec. 4, 2024.

His lawyers want to have his state case dismissed because he also faces federal charges of murder through the use of a firearm, interstate stalking resulting in death and a firearms offense which creates double jeopardy, and they want some evidence suppressed.

In Pennsylvania, he has been charged with forgery, carrying a firearm without a license, tampering with records or identification, giving false ID to law enforcement and possessing "instruments of crime."

He has pleaded not guilty to all charges.

Mangione is a federal inmate at the Metropolitan Detention Center in Brooklyn, N.Y., without bond.

Mangione's defense team has also asked Judge Gregory Carro to suppress the evidence found in his backpack. The backpack allegedly contained the gun, a loaded magazine, and his writings. The team has also asked to suppress any statements Mangione made to police after his Dec. 9 arrest at a McDonald's in Altoona, Pa., until his extradition to New York.

They argue that police conducted a "warrantless search" of the backpack and failed to give Mangione a Miranda warning.

New York no longer has capital punishment. Mangione faces the death penalty in his federal case.