ABC World News Tonight with David Muir S2024E330 - Episode 330

Alex Perez reports on the deadly shooting at a Christian K-12 school in Madison, Wisconsin, sources say a female student opened fire, killing a teacher and a student and wounded six others; Whit Johnson has the new details on the FBI and Dept. of Homeland Security deploying drone detection technology and infrared cameras to New York and New Jersey after a spike in unexplained drone sightings in at least seven states; Mary Bruce has details on President-elect Trump's controversial cabinet pick for the Dept. of Health and Human Services, Robert F. Kennedy Jr., meeting with Republican senators on Capitol Hill to defend himself after years of spreading false theories about vaccines; and more on tonight's broadcast of World News Tonight with David Muir.