Luigi Mangione's attorneys seek dismissal of state charges

• The 26-year-old was indicted on federal charges last month and has pleaded not guilty to state murder and terrorism charges in New York City.

Driving the news: Mangione's defense attorneys say in a notice to the N.Y. Supreme Court that the state indictment against him should be dismissed because "concurrent state and federal prosecutions violate the double jeopardy clause" of the Fifth Amendment.

• His legal team also cites the 14th Amendment's due process clause and the constitutional right against self-incrimination.
• They argue the indictment's two terrorism-related counts should be dismissed because the grand jury evidence did not meet the requirement.

Zoom in: Attorneys said in the notice that Mangione's statements to law enforcement at the time of his arrest should be suppressed because officers allegedly did not tell him his rights.

• Additionally, they are asking the court to suppress evidence seized during the arrest because they allege a warrantless search of his backpack was conducted.

Context: After Thompson was shot and killed on Dec. 4 in Manhattan, a dayslong manhunt ensued.

• Mangione was arrested at a McDonald's in Altoona, Pennsylvania, on separate charges.

Go deeper: Prosecutors to seek death penalty for Luigi Mangione