Pierre Thomas has details after Pres. Trump announced that 11 gang members were killed in a U.S. military strike that targeted a Venezuelan boat carrying illegal drugs bound for the U.S.; Mary Bruce reports on Pres. Trump saying he'll send the National Guard into Chicago; Victor Oquendo has the latest on the 8-year-old boy who was airlifted to a hospital after suffering severe shark bite wounds while snorkeling off the coast of Key Largo, Florida; David Muir reports on the newest season of National Geographic's "Limitless: Live Better Now" as the series follows actor Chris Hemsworth and his mission to help keep our brains sharp and how to fight cognitive decline; and more on tonight's broadcast of World News Tonight with David Muir.

Jay O'Brien reports on HHS Secretary Robert F. Kennedy Jr. defending himself as frustrated lawmakers from both parties demanded answers on whether he's trying to limit Americans' access to vaccines – and firing top health officials who stand in his way; Kayna Whitworth reports on the pursuit and arrest of a domestic violence suspect prompted by a woman, who police say, used a hand signal in a convenience store to ask for help; Matt Gutman looks back at the life and legacy of legendary Italian designer Giorgio Armani, who died at age 91, and how he redefined the fashion industry; and more on tonight's broadcast of World News Tonight with David Muir.