World News Tonight With David Muir

Alex Perez reports from Minneapolis, where a gunman outside a Catholic school church's stained glass windows opened fire on students attending mass – killing an 8-year-old and 10-year-old and injuring dozens more – and Pierre Thomas has the latest on the disturbing details investigators have now learned about the shooter; Rachel Scott has details on the newly installed director of the Centers for Disease Control and Prevention, Susan Monarez, who has been ousted just weeks after being confirmed by the Senate. Learn more about your ad choices. Visit podcastchoices.com/adchoices