Nearly two weeks after the murder of UnitedHealthcare CEO Brian Thompson, Aaron Katersky reports on a grand jury indicting suspect Luigi Mangione and upgrading charges to first-degree murder in "furtherance of terrorism;" Alex Perez has the latest on the shooting at a Christian school in Madison, Wisconsin, and police identifying the 15-year-old girl accused of killing a teacher and a student; Ian Pannell has details on the top Russian general that was killed by a bomb, hidden inside the handle of a scooter in the heart of Moscow, and Ukraine claiming responsibility; and more on tonight's broadcast of World News Tonight with David Muir.

Aaron Katersky has details on CEO murder suspect Luigi, who is now in a New York City jail after waiving extradition from Pennsylvania, and the new federal charges against him, which could carry the death penalty if convicted; Trevor Ault has the latest on the Amazon delivery drivers on strike across seven hubs just days before Christmas; Mary Bruce reports on the looming government shutdown as the House Republicans' spending bill, backed by President-elect Trump, fails to pass. ; Made in America Christmas; and more on tonight's broadcast of World News Tonight with David Muir.