Faith Abubey has the latest on the manhunt for a former police chief, who was serving decades in prison for first-degree murder and rape as it enters a third day after he escaped from an Arkansas prison; Rachel Scott has details after HHS Secretary Robert F. Kennedy Jr. announced the department will no longer recommend the COVID-19 vaccine for healthy children and pregnant women; Stephanie Ramos reports after a second suspect in the alleged kidnapping and torture of a cryptocurrency investor in NYC turned himself into police. The alleged victim says he was brutally tortured for weeks after refusing to provide his Bitcoin password; David Muir shares more on the life and legacy of singer and guitarist Rick Derringer, best known for his hit-song "Rock and Roll, Hoochie Koo," who has died at the age of 77; and more on tonight's broadcast of World News Tonight with David Muir.