Prosecution speaks after Luigi Mangione pleads guilty to federal charges

U.S. Attorney James McDonald, NYPD Commissioner Jessica Tisch and FBI New York assistant director-in-charge James Barnacle, Jr. speak outside a Manhattan courthouse following Luigi Mangione's guilty plea.

U.S. Attorney James McDonald, NYPD Commissioner Jessica Tisch and FBI New York assistant director-in-charge James Barnacle, Jr. speak to the press following the guilty plea of accused UnitedHealthcare CEO killer Luigi Mangione.